diff --git a/.gitignore b/.gitignore
index fdb7a3c6b..22d9e17e6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,3 +29,4 @@ vendor/cache
 /public/images/avatars
 /public/files
 /tags
+/config/initializers/gitlab_config.rb
diff --git a/app/controllers/blog_comments_controller.rb b/app/controllers/blog_comments_controller.rb
index e398501e4..b92223edc 100644
--- a/app/controllers/blog_comments_controller.rb
+++ b/app/controllers/blog_comments_controller.rb
@@ -57,9 +57,7 @@ class BlogCommentsController < ApplicationController
   def destroy
     @article = BlogComment.find(params[:id])
     if @article.parent_id.nil? #如果是文章被删，那么跳转到用户博客界面，如果带了course_id过来，那么就要跳转到课程首页
-      if params[:course_id]
-        @article.children.delete
-        @article.delete
+      if params[:course_id] #如果带了课程id过来，说明这是课程大纲，不要删除，只需取消课程大纲就ok了
         @course = Course.find(params[:course_id])
         @course.outline = 0
         @course.save
@@ -73,7 +71,7 @@ class BlogCommentsController < ApplicationController
     else#如果是回复被删，
       if params[:course_id] #如果带了course_id过来了，那么这是要跳到课程大纲去的
         @article.delete
-        redirect_to show_course_outline_course_path(:id=>params[:course_id])
+        redirect_to syllabus_course_path(:id=>params[:course_id])
       else
         root = @article.root
         @article.delete
@@ -133,7 +131,7 @@ class BlogCommentsController < ApplicationController
     respond_to do |format|
       format.html {
         if params[:course_id] #如果呆了course_id过来了，那么这是要跳到课程大纲去的
-          redirect_to show_course_outline_course_path(:id=>params[:course_id])
+          redirect_to syllabus_course_path(:id=>params[:course_id])
         else
           redirect_to user_blog_blog_comment_path(:user_id=>@article.author_id,:blog_id=>@article.blog_id,:id=>@article)
         end
diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index c9d632fec..0a3c61c90 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -740,7 +740,7 @@ class CoursesController < ApplicationController
   end
 
   #显示课程大纲
-  def show_course_outline
+  def syllabus
     @article = BlogComment.find(@course.outline)
     respond_to do |format|
       format.html {render :layout => 'base_courses'}
diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index f41dbe6c7..06c1a67e4 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -263,7 +263,7 @@ update
       @course_tag = params[:course]
       project_path_cut = RepositoriesHelper::PROJECT_PATH_CUT
       ip = RepositoriesHelper::REPO_IP_ADDRESS
-      gitlab_address = RepositoriesHelper::REPO_GITLAB_ADDRESS
+      gitlab_address = Redmine::Configuration['gitlab_address']
       if @repository.type.to_s=="Repository::Gitlab"
         @repos_url = "http://"+gitlab_address.to_s+"/"+@project.owner.to_s+"/"+@repository.identifier+"."+"git"
       else
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index d05f795ce..0d9588d24 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -243,7 +243,7 @@ class UsersController < ApplicationController
   #status 1 同意 2 拒绝
   def dealwith_apply_request
     @msg = CourseMessage.find(params[:msg_id])
-
+    #CourseMessage content存的是role  7教辅  9 教师
     case params[:agree]
       when 'Y'
         apply_user = User.find(@msg.course_message_id)
diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index ba99fe454..f32bef51b 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -45,6 +45,11 @@ module RepositoriesHelper
     end
   end
 
+  def user_commit_rep(mail)
+    user = User.find_by_mail(mail)
+    user.nil? ? User.find(2) :  User.find_by_mail(mail)
+  end
+
   def render_properties(properties)
     unless properties.nil? || properties.empty?
       content = ''
diff --git a/app/services/courses_service.rb b/app/services/courses_service.rb
index 8092bee88..74580632f 100644
--- a/app/services/courses_service.rb
+++ b/app/services/courses_service.rb
@@ -301,26 +301,46 @@ class CoursesService
   #@state == 5 您还未登录
   #@state == 6 申请成功，请等待审核完毕
   #@state == 7 您已经发送过申请了，请耐心等待
+  #@state == 8 您已经是该课程的教师了
+  #@state == 9 您已经是该课程的教辅了
   #@state 其他 未知错误，请稍后再试
   def join_course params,current_user
     course = Course.find_by_id params[:object_id]
+
     @state = 10
     if course
       if course_endTime_timeout? course
         @state = 2
       else
         if current_user.member_of_course?(course) #如果已经是成员
+          member = course.members.where("user_id=#{current_user.id} and course_id=#{course.id}")[0]
+          roleName = member.roles[0].name if member
           if params[:course_password] == course.password
-            #如果加入角色为学生
-            if params[:role] == "10"
+            #如果加入角色为学生 并且当前是学生
+            if params[:role] == "10" && roleName == "Student"
               @state = 3
-            elsif current_user.allowed_to?(:as_teacher,course)
-              @state = 3
-            else
-              Mailer.run.join_course_request(course, User.current, params[:role])
-              #如果加入角色为教师或者教辅
-              CourseMessage.create(:user_id => course.tea_id, :course_id => course.id, :viewed => false,:content=> params[:role],:course_message_id=>User.current.id,:course_message_type=>'JoinCourseRequest',:status=>0)
-              @state = 6
+            #如果加入的角色为老师，并且当前已经是老师
+            elsif params[:role] == "9" && roleName == "Teacher"
+              @state = 8
+            #如果加入的角色教辅并且当前为教辅
+            elsif params[:role] == "7" && roleName == "TeachingAsistant"
+              @state = 9
+            #如果加入角色为教师或者教辅，并且当前是学生，或者是要成为教辅，当前不是教辅，或者要成为教师，当前不是教师。那么要发送请求
+            elsif (params[:role] != "10" && roleName == "Student") || (params[:role] == "7" && roleName != "TeachingAsistant" ) || (params[:role] == "9" && roleName != "Teacher" )
+              #如果已经发送过消息了，那么就要给个提示
+              if CourseMessage.where("course_message_type = 'JoinCourseRequest' and user_id = #{course.tea_id} and content = #{params[:role]} and course_message_id = #{User.current.id} and course_id = #{course.id} and status = 0 ").count != 0
+                @state = 7
+              else
+                Mailer.run.join_course_request(course, User.current, params[:role])
+                CourseMessage.create(:user_id => course.tea_id, :course_id => course.id, :viewed => false,:content=> params[:role],:course_message_id=>User.current.id,:course_message_type=>'JoinCourseRequest',:status=>0)
+                @state = 6
+              end
+            #如果加入角色是学生，但是是当前课程的教师或者教辅
+            elsif params[:role] == "10" && roleName != "Student"
+              member.role_ids = [params[:role]]
+              member.save
+              StudentsForCourse.create(:student_id => current_user.id, :course_id => params[:object_id])
+              @state = 0
             end
           else
             @state = 1
diff --git a/app/views/courses/join.js.erb b/app/views/courses/join.js.erb
index 721367549..2b4927f48 100644
--- a/app/views/courses/join.js.erb
+++ b/app/views/courses/join.js.erb
@@ -24,6 +24,14 @@ hidden_join_course_form();
 <% elsif @state == 7%>
   alert("您已经发送过申请了，请耐心等待");
 hidden_join_course_form();
+<% elsif @state == 8%>
+alert("您已经是该课程的教师了");
+hidden_join_course_form();
+window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
+<% elsif @state == 9%>
+alert("您已经是该课程的教辅了");
+hidden_join_course_form();
+window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
 <% else %>
 alert("未知错误，请稍后再试");
 <% end %>
diff --git a/app/views/courses/set_course_outline.js.erb b/app/views/courses/set_course_outline.js.erb
index af075d2b8..a43a62c7d 100644
--- a/app/views/courses/set_course_outline.js.erb
+++ b/app/views/courses/set_course_outline.js.erb
@@ -1,8 +1,8 @@
 hideModal();
 <%if @course.tea_id == User.current.id && @course.outline == 0 %>
 <% else %>
-    $("#course_outline_bar").html('<a href="<%=show_course_outline_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>')
+    $("#course_outline_bar").html('<a href="<%=syllabus_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>')
 <%end %>
 <%if @is_in_show_outline_page && @is_in_show_outline_page == 'Y'%>
-    window.location.href='<%=show_course_outline_course_path(@course) %>';
+    window.location.href='<%=syllabus_course_path(@course) %>';
 <% end %>
diff --git a/app/views/courses/show_course_outline.html.erb b/app/views/courses/syllabus.html.erb
similarity index 97%
rename from app/views/courses/show_course_outline.html.erb
rename to app/views/courses/syllabus.html.erb
index 18a980209..18f5817b0 100644
--- a/app/views/courses/show_course_outline.html.erb
+++ b/app/views/courses/syllabus.html.erb
@@ -39,14 +39,14 @@
         showNormalImage('message_description_<%= @article.id %>');
     });
 </script>
-<div class="postRightContainer ml10" onmouseover="$('#message_setting_<%= @article.id%>').show();" onmouseout="$('#message_setting_<%= @article.id%>').hide();">
+<div class="postRightContainer ml10" >
   <div class="postThemeContainer">
     <div class="postDetailPortrait">
       <%= link_to image_tag(url_to_avatar(@article.author),:width=>50,:height => 50,:alt=>'图像' ),user_path(@article.author) %>
     </div>
     <div class="postThemeWrap">
       <% if User.current &&  @article.author.id == User.current.id%>
-          <div class="homepagePostSetting" id="message_setting_<%= @article.id%>" style="display: none">
+          <div class="homepagePostSetting" id="message_setting_<%= @article.id%>" >
             <ul>
               <li class="homepagePostSettingIcon">
                 <ul class="homepagePostSettiongText">
@@ -55,7 +55,7 @@
                   </li>
                   <li>
                     <%= link_to(
-                                '删除大纲',
+                                '取消大纲',
                                 {:controller => 'blog_comments',:action => 'destroy',:user_id=>BlogComment.find(@course.outline).author_id,:blog_id=>BlogComment.find(@course.outline).blog_id, :id => @course.outline,:course_id=>@course.id},
                                 :method => :delete,
                                 :data => {:confirm => l(:text_are_you_sure)},
diff --git a/app/views/layouts/_new_feedback.html.erb b/app/views/layouts/_new_feedback.html.erb
index 66d25a4b1..8814d1043 100644
--- a/app/views/layouts/_new_feedback.html.erb
+++ b/app/views/layouts/_new_feedback.html.erb
@@ -22,8 +22,11 @@
           <% end %>
         </div>
         <div class="mt5">
-          <a target="hiddentab" href="http://wpa.qq.com/msgrd?v=1&uin=1554253403&site=qq&menu=yes" style="color: #269ac9;">
-            <%= l(:label_technical_support) %>白&nbsp;&nbsp;&nbsp;羽</a>
+          <!--<a target="hiddentab" href="http://wpa.qq.com/msgrd?v=1&uin=1554253403&site=qq&menu=yes" style="color: #269ac9;">-->
+            <%#= l(:label_technical_support) %>
+          <!--白&nbsp;&nbsp;&nbsp;羽</a>-->
+          <a target="hiddentab" href="http://shang.qq.com/wpa/qunwpa?idkey=4fe2d63a4527cddce038f04f0b1d728a62082074fb4a74870a5444ee1a6910ad" style="color: #269ac9;">
+            请加入：师姐答疑群</a>
         </div>
       </div>
       <div class="side_bottom"></div>
diff --git a/app/views/layouts/base_courses.html.erb b/app/views/layouts/base_courses.html.erb
index 305eaaa29..98e8f378d 100644
--- a/app/views/layouts/base_courses.html.erb
+++ b/app/views/layouts/base_courses.html.erb
@@ -89,11 +89,11 @@
               <%if User.current && @course.tea_id == User.current.id && (@course.outline == 0 ||  BlogComment.where(:id=>@course.outline).count == 0) %>
                   <a href="javascript:void(0);" title="设置课程大纲" onclick="course_outline('<%= @course.id%>')" class="mr5 syllabusSetting fl"> </a>
                <% elsif User.current && @course.tea_id == User.current.id && @course.outline != 0 && BlogComment.where(:id=>@course.outline).count != 0%>
-                  <a href="<%=show_course_outline_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>
-                <% elsif User.current && @course.tea_id != User.current.id && !@course.is_public? && User.current.member_of_course?(@course)%>
-                  <a href="<%=show_course_outline_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>
-                <% elsif User.current && @course.tea_id != User.current.id && @course.is_public?%>
-                  <a href="<%=show_course_outline_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>
+                  <a href="<%=syllabus_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>
+                <% elsif User.current && @course.tea_id != User.current.id && !@course.is_public? && User.current.member_of_course?(@course)  && @course.outline != 0%>
+                  <a href="<%=syllabus_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>
+                <% elsif User.current && @course.tea_id != User.current.id && @course.is_public? && @course.outline != 0%>
+                  <a href="<%=syllabus_course_path(@course) %>" title="课程大纲" class="mr5 syllabusIcon fl"> </a>
                 <%else%>
                <%end %>
                </span>
diff --git a/app/views/repositories/_revisions.html.erb b/app/views/repositories/_revisions.html.erb
index fe60f8933..837096c89 100644
--- a/app/views/repositories/_revisions.html.erb
+++ b/app/views/repositories/_revisions.html.erb
@@ -16,15 +16,31 @@
       <% show_diff = revisions.size > 1 %>
       <% line_num = 1 %>
       <% revisions.each do |changeset| %>
-          <tr class="changeset <%= cycle 'odd', 'even' %>">
-
-            <td class="id"><%= h truncate(changeset.id.to_s, :length => 20) %></td>
-            <!--<td class="checkbox"><%#= radio_button_tag('rev_to', changeset.id, (line_num==2), :id => "cbto-#{line_num}", :onclick => "if ($('#cb-#{line_num}').attr('checked')) {$('#cb-#{line_num-1}').attr('checked',true);}") if show_diff && (line_num > 1) %></td>-->
-            <td class="committed_on"><%= format_time(changeset.created_at) %></td>
-            <td class="author"><%= h truncate(changeset.author_name.to_s, :length => 30) %></td>
-            <td class="comments"><%= textilizable(truncate_at_line_break(changeset.message)) %></td>
-          </tr>
-          <% line_num += 1 %>
+          <div class="col-md-10 col-sm-12">
+            <ul class="bordered-list">
+              <li class="commit js-toggle-container">
+                <div class="commit-row-title">
+                  <strong class="str-truncated">
+                    <a class="commit-row-message"><%= textilizable(truncate_at_line_break(changeset.message)) %></a>
+                  </strong>
+                  <div class="pull-right" title="修订号">
+                    <%= h truncate(changeset.short_id.to_s, :length => 20) %>
+                  </div>
+                  <div class="notes_count">
+                  </div>
+                </div>
+                <div class="commit-row-info">
+                  <a class="commit-author-link has_tooltip"> <span class="commit-author-name">
+                    <%= image_tag(url_to_avatar(user_commit_rep(changeset.author_email)),  :width => "20", :height => "20", :class => "fl portraitRadius mt2 ml4 mr5") %>
+                    <%= link_to user_commit_rep(changeset.author_email), user_path(user_commit_rep(changeset.author_email)), :length => 30 %></span></a>
+                  提交于
+                  <div class="committed_ago">
+                    <time class="time_ago js-timeago"  title="<%= changeset.created_at %>"><%= time_tag(changeset.created_at) %> 前</time> &nbsp;
+                  </div>
+                </div>
+              </li>
+            </ul>
+          </div>
       <% end %>
       </tbody>
     </table>
diff --git a/app/views/repositories/show.html.erb b/app/views/repositories/show.html.erb
index 7f9f675d2..81c42c0ea 100644
--- a/app/views/repositories/show.html.erb
+++ b/app/views/repositories/show.html.erb
@@ -30,8 +30,8 @@
       <div class="cl"></div>
       <div class="recordBanner mt10">
         <% if @changesets && !@changesets.empty? %>
-            <%= image_tag(url_to_avatar(@changesets_latest_coimmit.author_name),  :width => "25", :height => "25", :class => "fl portraitRadius mt2 ml4 mr5") %>
-            <span class="fl"><div class="fb fontGrey3 mr5 fl"><%=link_to @changesets_latest_coimmit.author_name, user_path(@changesets_latest_coimmit.author_name) %></div>
+            <%= image_tag(url_to_avatar(user_commit_rep(@changesets_latest_coimmit.author_email)),  :width => "25", :height => "25", :class => "fl portraitRadius mt2 ml4 mr5") %>
+            <span class="fl"><div class="fb fontGrey3 mr5 fl"><%=link_to user_commit_rep(@changesets_latest_coimmit.author_email), user_path(@changesets_latest_coimmit.author_name) %></div>
                 <div class="fl">提交于<%= time_tag(@changesets_latest_coimmit.created_at) %>：</div>
                 <div class="commit_content_dec fl" title="<%= @changesets_latest_coimmit.comments %>"><%= @changesets_latest_coimmit.message %></div>
             </span>
diff --git a/config/configuration.yml b/config/configuration.yml
index 2ac986927..3790045aa 100644
--- a/config/configuration.yml
+++ b/config/configuration.yml
@@ -200,6 +200,9 @@ default:
   repository_root_path: '/tmp/htdocs'
   judge_server: 'http://judge.trustie.net/'
 
+  # Git's url
+  gitlab_address: 'http://gitfast.trustie.net'
+
 # specific configuration options for production environment
 # that overrides the default ones
 production:
diff --git a/config/initializers/gitlab_config.rb b/config/initializers/gitlab_config.rb
index 75edc8eff..c82b2edff 100644
--- a/config/initializers/gitlab_config.rb
+++ b/config/initializers/gitlab_config.rb
@@ -1,7 +1,7 @@
 Gitlab.configure do |config|
   # config.endpoint       = 'http://192.168.41.130:3000/trustie/api/v3' # API endpoint URL, default: ENV['GITLAB_API_ENDPOINT']
   # config.private_token  = 'cK15gUDwvt8EEkzwQ_63'       # user's private token, default: ENV['GITLAB_API_PRIVATE_TOKEN']
-  config.endpoint       = 'http://git.trustie.net/trustie/api/v3' # API endpoint URL, default: ENV['GITLAB_API_ENDPOINT']
+  config.endpoint       = 'http://gitfast.trustie.net/api/v3' # API endpoint URL, default: ENV['GITLAB_API_ENDPOINT']
   config.private_token  = 'fPc_gBmEiSANve8TCfxW'       # user's private token, default: ENV['GITLAB_API_PRIVATE_TOKEN']
   # Optional
   # config.user_agent   = 'Custom User Agent'          # user agent, default: 'Gitlab Ruby Gem [version]'
diff --git a/config/routes.rb b/config/routes.rb
index 5be734dee..9a6b48da2 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -792,7 +792,7 @@ RedmineApp::Application.routes.draw do
       get 'course_outline'
       post 'search_course_outline'
       post 'set_course_outline'
-      get 'show_course_outline'
+      get 'syllabus'
     end
     collection do
       match 'join_private_courses', :via => [:get, :post]
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index b587d5e36..5612a774e 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -148,7 +148,7 @@ a.postReplyCancel:hover {color:#ffffff;}
 .homepagePostSetting ul li:hover ul {display:block;}
 .homepagePostSettingIcon {background:url(../images/homepage_icon.png) -93px -5px no-repeat; width:20px; height:20px;}
 .homepagePostSettiongText {width:85px; line-height:2; font-size:12px; color:#616060; background-color:#ffffff; border:1px solid #eaeaea; border-radius:3px; position:absolute; left:-68px; top:20px; padding:5px 0px; display:none;}
-.homepagePostSettingIcon:hover {background:url(../images/homepage_icon.png) -93px -44px no-repeat;}
+.homepagePostSettingIcon:hover {background:url(../images/homepage_icon.png) -93px -44px no-repeat;cursor: pointer}
 a.postOptionLink {color:#616060; display:block; width:55px; padding:0px 15px;}
 a.postOptionLink:hover {color:#ffffff; background-color:#269ac9;}
 .homepagePostReplyPortrait {float:left; width:33px;}
diff --git a/public/stylesheets/repository.css b/public/stylesheets/repository.css
index 375b188d3..71cbd47b6 100644
--- a/public/stylesheets/repository.css
+++ b/public/stylesheets/repository.css
@@ -219,3 +219,60 @@
 .mt1 {margin-top:1px;}
 .mt2 {margin-top:2px;}
 .commit_content_dec{width: 300px;overflow: hidden; white-space: nowrap;text-overflow: ellipsis;}
+
+/*提交信息列表*/
+.col-md-10 {
+    width: 100%;
+}
+ul.bordered-list {
+    margin: 5px 0px;
+    padding: 0px;
+}
+ul.bordered-list li {
+    padding: 5px 0px;
+    border-bottom: 1px solid #EEE;
+    overflow: hidden;
+    display: block;
+    margin: 0px;
+}
+.commits-row ul li.commit {
+    padding: 8px 0px;
+}
+li.commit .commit-row-title {
+    font-size: 15px;
+    line-height: 20px;
+    margin-bottom: 2px;
+}
+li.commit .commit-row-title .str-truncated {
+    max-width: 70%;
+}
+.str-truncated {
+    display: inline-block;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    vertical-align: top;
+    white-space: nowrap;
+    max-width: 82%;
+}
+li.commit .commit-row-title .commit-row-message {
+    color: #444;
+}
+.pull-right {
+    float: right;
+    color: #777;
+}
+li.commit .commit-row-title .commit_short_id {
+    min-width: 65px;
+    font-family: "Menlo","Liberation Mono","Consolas","DejaVu Sans Mono","Ubuntu Mono","Courier New","andale mono","lucida console",monospace;
+}
+li.commit .commit-row-info {
+    color: #777;
+    line-height: 24px;
+    font-size: 13px;
+}
+li.commit .commit-row-info a {
+    color: #777;
+}
+li.commit .commit-row-info .committed_ago {
+    display: inline-block;
+}
\ No newline at end of file