修改作业提交项目第一项为请选择

app/helpers/homework_attach_helper.rb

@@ -60,7 +60,7 @@ module HomeworkAttachHelper
     memberships = User.current.memberships.all(:conditions => cond)
     projects = memberships.map(&:project)
     not_have_project = []
-    not_have_project << ""
+    not_have_project << Setting.please_chose
     not_have_project << 0
     type = []
     type << not_have_project

config/settings.yml

@@ -256,6 +256,8 @@ course_domain:
   default: course.trustie.net
 repository_domain:
   default: repository.trustie.net
+please_chose:
+  default: 请选择
 plugin_redmine_ckeditor:
   serialized: true
   default: --- !ruby/hash:ActiveSupport::HashWithIndifferentAccess