diff --git a/doc/style.css b/doc/style.css
new file mode 100644
index 000000000..3653dd1c1
--- /dev/null
+++ b/doc/style.css
@@ -0,0 +1,1078 @@
+body,body.editor,body.body {
+    font: 110% "Times New Roman", Arial, Verdana, Helvetica, serif;
+    background: White;
+    color: Black;
+}
+
+a, a.reference {
+	text-decoration: none; 
+}
+a[href]:hover { text-decoration: underline; }
+
+img {
+    border: none;
+	vertical-align: middle;
+}
+
+p, div.text {
+    text-align: left;
+    line-height: 1.5em;
+    margin: 0.5em 0em 0em 0em;
+}
+
+
+
+p a:active {
+	color: Red;
+    background-color: transparent;
+}
+
+p img {
+    border: 0;
+    margin: 0;
+}
+
+img.inlinephoto {
+    padding: 0;
+    padding-right: 1em;
+    padding-top: 0.7em;
+    float: left;
+}
+
+hr {
+    clear: both;
+    height: 1px;
+    color: #8CACBB;
+    background-color: transparent;
+}
+
+
+ul { 
+    line-height: 1.5em;
+    /*list-style-image: url("bullet.gif"); */
+    margin-left: 1.5em;
+    padding:0;
+}
+
+ol {
+    line-height: 1.5em;
+    margin-left: 1.5em;
+    padding:0;
+}
+
+ul a, ol a {
+    text-decoration: underline;
+}
+
+dl {
+}
+
+dt {
+    font-weight: bold;    
+}
+
+dd {
+    line-height: 1.5em;
+    margin-bottom: 1em;
+}
+
+blockquote {
+    font-family: Times, "Times New Roman", serif;
+    font-style: italic;
+    font-size: 120%;
+}
+
+code {
+    color: Black;
+    /*background-color: #dee7ec;*/
+    background-color: #cccccc;
+}
+
+pre {
+    padding: 1em;
+    border: 1px solid #8cacbb;
+    color: Black;
+    background-color: #dee7ec;
+    background-color: #cccccc;
+    overflow: auto;
+}
+
+
+.netscape4 {
+    display: none;
+}
+
+/* main page styles */
+
+/*a[href]:hover { color: black; text-decoration: underline; }
+a[href]:link { color: black; text-decoration: underline; }
+a[href] { color: black; text-decoration: underline; }
+*/
+
+span.menu_selected {
+	color: black;
+  	font: 140% Verdana, Helvetica, Arial, sans-serif;
+	text-decoration: none;
+    padding-right: 0.3em;
+    background-color: #cccccc;
+}
+
+
+a.menu {
+  	/*color: #3ba6ec; */
+  	font: 140% Verdana, Helvetica, Arial, sans-serif;
+	text-decoration: none;
+    padding-right: 0.3em;
+}
+
+a.menu[href]:visited, a.menu[href]:link{
+  	/*color: #3ba6ec; */
+  	font: 140% Verdana, Helvetica, Arial, sans-serif;
+	text-decoration: none;
+}
+
+a.menu[href]:hover {
+  	/*color: black;*/
+}
+
+div.project_title{
+  /*border-spacing: 20px;*/
+  font: 160% Verdana, Helvetica, Arial, sans-serif;
+  color: #3ba6ec; 
+  vertical-align: middle;
+  padding-bottom: 0.3em;
+}
+
+a.wikicurrent {
+  font: 100% Verdana, Helvetica, Arial, sans-serif;
+  color: #3ba6ec; 
+  vertical-align: middle;
+}
+
+
+table.body {
+  border: 0;
+  /*padding: 0;
+  border-spacing: 0px;
+  border-collapse: separate;
+  */
+}
+
+td.page-header-left {
+  padding: 5px;
+  /*border-bottom: 1px solid #444444;*/
+}
+
+td.page-header-top {
+  padding: 0;
+    
+  /*border-bottom: 1px solid #444444;*/
+}
+
+td.sidebar {
+  padding: 1 0 0 1;
+}
+
+td.sidebar p.classblock {
+  padding: 0 5 0 5;
+  margin: 1 1 1 1;
+  border: 1px solid #444444;
+  background-color: #eeeeee;
+}
+
+td.sidebar p.userblock {
+  padding: 0 5 0 5;
+  margin: 1 1 1 1;
+  border: 1px solid #444444;
+  background-color: #eeeeff;
+}
+
+td.content {
+  padding: 1 5 1 5;
+  vertical-align: top;
+  width: 100%;
+}
+
+p.ok-message {
+  background-color: #22bb22;
+  padding: 5 5 5 5;
+  color: white;
+  font-weight: bold;
+}
+p.error-message {
+  background-color: #bb2222;
+  padding: 5 5 5 5;
+  color: white;
+  font-weight: bold;
+}
+
+p:first-child { 
+  margin: 0 ;
+  padding: 0;
+}
+
+/* style for forms */
+table.form {
+  padding: 2;
+  border-spacing: 0px;
+  border-collapse: separate;
+}
+
+table.form th {
+  color: #333388;
+  text-align: right;
+  vertical-align: top;
+  font-weight: normal;
+}
+table.form th.header {
+  font-weight: bold;
+  background-color: #eeeeff;
+  text-align: left;
+}
+
+table.form th.required {
+  font-weight: bold;
+}
+
+table.form td {
+  color: #333333;
+  empty-cells: show;
+  vertical-align: top;
+}
+
+table.form td.optional {
+  font-weight: bold;
+  font-style: italic;
+}
+
+table.form td.html {
+  color: #777777;
+}
+
+/* style for lists */
+table.list {
+  border-spacing: 0px;
+  border-collapse: separate;
+  vertical-align: top;
+  padding-top: 0;
+  width: 100%;
+}
+
+table.list th {
+  padding: 0 4 0 4;
+  color: #404070;
+  background-color: #eeeeff;
+  border-right: 1px solid #404070;
+  border-top: 1px solid #404070;
+  border-bottom: 1px solid #404070;
+  vertical-align: top;
+  empty-cells: show;
+}
+table.list th a[href]:hover { color: #404070 }
+table.list th a[href]:link { color: #404070 }
+table.list th a[href] { color: #404070 }
+table.list th.group {
+  background-color: #f4f4ff;
+  text-align: center;
+  font-size: 120%;
+}
+
+table.list td {
+  padding: 0 4 0 4;
+  border: 0 2 0 2;
+  border-right: 1px solid #404070;
+  color: #404070;
+  background-color: white;
+  vertical-align: top;
+  empty-cells: show;
+}
+
+table.list tr.normal td {
+  background-color: white;
+  white-space: nowrap;
+}
+
+table.list tr.alt td {
+  background-color: #efefef;
+  white-space: nowrap;
+}
+
+table.list td:first-child {
+  border-left: 1px solid #404070;
+  border-right: 1px solid #404070;
+}
+
+table.list th:first-child {
+  border-left: 1px solid #404070;
+  border-right: 1px solid #404070;
+}
+
+table.list tr.navigation th {
+  text-align: right;
+}
+table.list tr.navigation th:first-child {
+  border-right: none;
+  text-align: left;
+}
+
+
+/* style for message displays */
+table.messages {
+  border-spacing: 0px;
+  border-collapse: separate;
+  width: 100%;
+}
+
+table.messages th.header{
+  padding-top: 10px;
+  border-bottom: 1px solid gray;
+  font-weight: bold;
+  background-color: white;
+  color: #707040;
+}
+
+table.messages th {
+  font-weight: bold;
+  color: black;
+  text-align: left;
+  border-bottom: 1px solid #afafaf;
+}
+
+table.messages td {
+  font-family: monospace;
+  background-color: #efefef;
+  border-bottom: 1px solid #afafaf;
+  color: black;
+  empty-cells: show;
+  border-right: 1px solid #afafaf;
+  vertical-align: top;
+  padding: 2 5 2 5;
+}
+
+table.messages td:first-child {
+  border-left: 1px solid #afafaf;
+  border-right: 1px solid #afafaf;
+}
+
+/* style for file displays */
+table.files {
+  border-spacing: 0px;
+  border-collapse: separate;
+  width: 100%;
+}
+
+table.files th.header{
+  padding-top: 10px;
+  border-bottom: 1px solid gray;
+  font-weight: bold;
+  background-color: white;
+  color: #707040;
+}
+
+table.files th {
+  border-bottom: 1px solid #afafaf;
+  font-weight: bold;
+  text-align: left;
+}
+
+table.files td {
+  font-family: monospace;
+  empty-cells: show;
+}
+
+/* style for history displays */
+table.history {
+  border-spacing: 0px;
+  border-collapse: separate;
+  width: 100%;
+}
+
+table.history th.header{
+  padding-top: 10px;
+  border-bottom: 1px solid gray;
+  font-weight: bold;
+  background-color: white;
+  color: #707040;
+  font-size: 100%;
+}
+
+table.history th {
+  border-bottom: 1px solid #afafaf;
+  font-weight: bold;
+  text-align: left;
+  font-size: 90%;
+}
+
+table.history td {
+  font-size: 90%;
+  vertical-align: top;
+  empty-cells: show;
+}
+
+
+/* style for class list */
+table.classlist {
+  border-spacing: 0px;
+  border-collapse: separate;
+  width: 100%;
+}
+
+table.classlist th.header{
+  padding-top: 10px;
+  border-bottom: 1px solid gray;
+  font-weight: bold;
+  background-color: white;
+  color: #707040;
+}
+
+table.classlist th {
+  font-weight: bold;
+  text-align: left;
+}
+
+
+/* style for class help display */
+table.classhelp {
+  border-spacing: 0px;
+  border-collapse: separate;
+  width: 100%;
+}
+
+table.classhelp th {
+  font-weight: bold;
+  text-align: left;
+  color: #707040;
+}
+
+table.classhelp td {
+  padding: 2 2 2 2;
+  border: 1px solid black;
+  text-align: left;
+  vertical-align: top;
+  empty-cells: show;
+}
+
+
+/* style for "other" displays */
+table.otherinfo {
+  border-spacing: 0px;
+  border-collapse: separate;
+  width: 100%;
+}
+
+table.otherinfo th.header{
+  padding-top: 10px;
+  border-bottom: 1px solid gray;
+  font-weight: bold;
+  background-color: white;
+  color: #707040;
+}
+
+table.otherinfo th {
+  border-bottom: 1px solid #afafaf;
+  font-weight: bold;
+  text-align: left;
+}
+
+input {
+    border: 1px solid #8cacbb;
+    color: Black;
+    background-color: white;
+    vertical-align: middle;
+    margin-bottom: 1px; /* IE bug fix */
+    padding: 0.1em;
+}
+
+select {
+    border: 1px solid #8cacbb;
+    color: Black;
+    background-color: white;
+    vertical-align: middle;
+    margin-bottom: 1px; /* IE bug fix */
+    padding: 0.1em;
+}
+
+
+a.nonexistent {
+    color: #FF2222;
+}
+a.nonexistent:visited {
+    color: #FF2222;
+}
+a.external {
+    color: #AA6600;
+}
+
+/*
+dl,ul,ol {
+    margin-top: 1pt;
+}
+tt,pre {
+    font-family: Lucida Console,Courier New,Courier,monotype;
+    font-size: 12pt;
+}
+pre.code {
+    margin-top: 8pt;
+    margin-bottom: 8pt;
+    background-color: #FFFFEE;
+    white-space:pre;
+    border-style:solid;
+    border-width:1pt;
+    border-color:#999999;
+    color:#111111;
+    padding:5px;
+    width:100%;
+}
+*/
+div.diffold {
+    background-color: #FFFF80;
+    border-style:none;
+    border-width:thin;
+    width:100%;
+}
+div.diffnew {
+    background-color: #80FF80;
+    border-style:none;
+    border-width:thin;
+    width:100%;
+}
+div.message {
+    margin-top: 6pt;
+    background-color: #E8FFE8;
+    border-style:solid;
+    border-width:1pt;
+    border-color:#999999;
+    color:#440000;
+    padding:5px;
+    width:100%;
+}
+strong.highlight {
+    background-color: #FFBBBB;
+/* as usual, NetScape fucks up with innocent CSS
+    border-color: #FFAAAA;
+    border-style: solid;
+    border-width: 1pt;
+*/
+}
+
+table.navibar {
+    background-color: #C8C8C8;
+    border-spacing: 3px;
+}
+td.navibar {
+    background-color: #E8E8E8;
+    vertical-align: top;
+    text-align: right;
+    padding: 0px;
+}
+
+div.pagename {
+    font-size: 140%;
+    color: blue;
+    text-align: center;
+    font-weight: bold;
+    background-color: white;
+    padding: 0 ;
+}
+
+a.wikiaction, input.wikiaction {
+    color: black; 
+    text-decoration: None;
+    text-align: center;
+    color: black;
+    /*border: 1px solid #3ba6ec; */
+    margin: 4px;
+    padding: 5;
+    padding-bottom: 0;
+    white-space: nowrap;
+}
+
+a.wikiaction[href]:hover { 
+	color: black; 
+	text-decoration: none; 
+	/*background-color: #dddddd; */
+}
+
+span.wikiuserpref {
+    padding-top: 1em;
+    font-size: 120%;
+}
+
+div.wikitrail {
+    vertical-align: bottom;
+    /*font-size: -1;*/
+    padding-top: 1em;
+    display: none;
+}
+
+div.wikiaction {
+    vertical-align: middle;
+    /*border-bottom: 1px solid #8cacbb;*/
+    padding-bottom:1em;
+    text-align: left;
+    width: 100%;
+}
+
+div.wikieditmenu {
+    text-align: right;
+}
+
+form.wikiedit {
+    border: 1px solid #8cacbb;
+    background-color: #f0f0f0;
+    background-color: #fabf00;
+    padding: 1em;
+    padding-right: 0em;
+}
+
+div.legenditem {
+    padding-top: 0.5em;
+    padding-left: 0.3em;
+}
+
+span.wikitoken {
+   background-color: #eeeeee;
+}
+    
+
+div#contentspace h1:first-child, div.heading:first-child { 
+  padding-top: 0;
+  margin-top: 0;
+}
+div#contentspace h2:first-child { 
+  padding-top: 0;
+  margin-top: 0;
+}
+
+/* heading and paragraph text */
+
+div.heading, h1 {
+    font-family: Verdana, Helvetica, Arial, sans-serif;
+    background-color: #58b3ef;
+    background-color: #FFFFFF; 
+    /*color: #4893cf;*/
+    color: black;
+    padding-top: 1.0em;
+    padding-bottom:0.2em;
+    text-align: left;
+    margin-top: 0em; 
+    /*margin-bottom:8pt;*/
+    font-weight: bold;
+    font-size: 115%;
+    border-bottom: 1px solid #8CACBB;
+}
+
+
+h1, h2, h3, h4, h5, h6 {
+    color: Black;
+    clear: left;
+    font: 100% Verdana, Helvetica, Arial, sans-serif;
+    margin: 0;
+    padding-left: 0em;
+    padding-top: 1em;
+    padding-bottom: 0.2em;
+    /*border-bottom: 1px solid #8CACBB;*/
+}
+/* h1,h2 { padding-top: 0; }*/
+
+
+h1 { font-size: 145%; }
+h2 { font-size: 135%; }
+h3 { font-size: 125%; }
+h4 { font-size: 120%; }
+h5 { font-size: 110%; }
+h6 { font-size: 80%; }
+
+h1 a { text-decoration: None;}
+
+div.exception {
+  background-color: #bb2222;
+  padding: 5 5 5 5;
+  color: white;
+  font-weight: bold;
+}
+pre.exception {
+    font-size: 110%;
+    padding: 1em;
+    border: 1px solid #8cacbb;
+    color: Black;
+    background-color: #dee7ec;
+    background-color: #cccccc;
+}
+
+/* defines for navgiation bar (documentation) */
+
+
+div.direntry {
+    padding-top: 0.3em;
+    padding-bottom: 0.3em;
+    margin-right: 1em;
+    font-weight: bold;
+    background-color: #dee7ec;
+    font-size: 110%;
+}
+
+div.fileentry {
+    font-family: Verdana, Helvetica, Arial, sans-serif;
+    padding-bottom: 0.3em;
+    white-space: nowrap;
+    line-height: 150%;
+}
+
+a.fileentry {
+    white-space: nowrap;
+}
+
+
+span.left {
+    text-align: left;
+}
+span.right {
+    text-align: right;
+}
+
+div.navbar {
+  /*margin: 0;*/
+  font-size: 80% /*smaller*/;
+  font-weight: bold;
+  text-align: left;
+  /* position: fixed; */
+  top: 100pt;
+  left: 0pt; /*  auto; */
+  width: 120pt;
+  /* right: auto;
+  right: 0pt;  2em; */
+}
+
+
+div.history a {
+    /* font-size: 70%; */
+}
+
+div.wikiactiontitle { 
+  font-weight: bold;
+}
+
+/*  REST  defines */
+
+div.document {
+    margin: 0;
+}
+
+h1.title {
+    margin: 0;
+    margin-bottom: 0.5em;
+}
+
+td.toplist {
+    vertical-align: top;
+}
+
+img#pyimg {
+    position: absolute;
+    top: 4px;
+    left: 4px;
+}
+    
+div#navspace {
+    position: absolute;
+    top: 100px;
+    left: 11px;
+    font-size: 100%;
+    width: 150px;
+    overflow: hidden; /* scroll;  */
+}
+
+div#metaspace {
+    position: absolute;
+    top: 10px;
+    left: 170px;
+}
+
+div#errorline {
+    position: relative;
+    top: 5px; 
+    float: right; 
+}
+
+div#contentspace {
+    position: absolute;
+  	/* font: 120% "Times New Roman", serif;*/
+    font: 110% Verdana, Helvetica, Arial, sans-serif;
+    top: 100px;
+    left: 170px;
+    margin-right: 5px;
+}
+
+div#menubar {
+/*    width: 400px; */
+    float: left;
+}
+
+/* for the documentation page */
+div#docinfoline {
+  position: relative;
+  top: 5px; 
+  left: 0px;
+
+  /*background-color: #dee7ec; */
+  padding: 5pt; 
+  padding-bottom: 1em; 
+  color: black;
+  /*border-width: 1pt;
+  border-style: solid;*/
+
+}
+
+div#docnavlist {
+  /*background-color: #dee7ec; */
+  padding: 5pt; 
+  padding-bottom: 2em; 
+  color: black;
+  border-width: 1pt;
+  /*border-style: solid;*/
+}
+
+
+/* text markup */
+
+div.listtitle {
+    color: Black;
+    clear: left;
+    font: 120% Verdana, Helvetica, Arial, sans-serif;
+    margin: 0;
+    padding-left: 0em;
+    padding-top: 0em;
+    padding-bottom: 0.2em;
+    margin-right: 0.5em;
+    border-bottom: 1px solid #8CACBB;
+}
+
+div.actionbox h3 { 
+  padding-top: 0;
+  padding-right: 0.5em;
+  padding-left: 0.5em;
+  background-color: #fabf00;
+  text-align: center;
+  border: 1px solid black; /* 8cacbb; */
+}
+
+div.actionbox a { 
+  display: block;
+  padding-bottom: 0.5em;
+  padding-top: 0.5em;
+  margin-left: 0.5em;
+}
+
+div.actionbox a.history { 
+  display: block;
+  padding-bottom: 0.5em;
+  padding-top: 0.5em;
+  margin-left: 0.5em;
+  font-size: 90%; 
+}
+
+div.actionbox { 
+  margin-bottom: 2em;
+  padding-bottom: 1em;
+  overflow: hidden; /* scroll;  */
+}
+
+/* taken from docutils (oh dear, a bit senseless) */
+ol.simple, ul.simple {
+  margin-bottom: 1em }
+
+ol.arabic {
+  list-style: decimal }
+
+ol.loweralpha {
+  list-style: lower-alpha }
+
+ol.upperalpha {
+  list-style: upper-alpha }
+
+ol.lowerroman {
+  list-style: lower-roman }
+
+ol.upperroman {
+  list-style: upper-roman }
+
+
+/*
+:Author: David Goodger
+:Contact: goodger@users.sourceforge.net
+:date: $Date: 2003/01/22 22:26:48 $
+:version: $Revision: 1.29 $
+:copyright: This stylesheet has been placed in the public domain.
+
+Default cascading style sheet for the HTML output of Docutils.
+*/
+/*
+.first {
+  margin-top: 0 }
+
+.last {
+  margin-bottom: 0 }
+
+a.toc-backref {
+  text-decoration: none ;
+  color: black }
+
+dd {
+  margin-bottom: 0.5em }
+
+div.abstract {
+  margin: 2em 5em }
+
+div.abstract p.topic-title {
+  font-weight: bold ;
+  text-align: center }
+
+div.attention, div.caution, div.danger, div.error, div.hint,
+div.important, div.note, div.tip, div.warning {
+  margin: 2em ;
+  border: medium outset ;
+  padding: 1em }
+
+div.attention p.admonition-title, div.caution p.admonition-title,
+div.danger p.admonition-title, div.error p.admonition-title,
+div.warning p.admonition-title {
+  color: red ;
+  font-weight: bold ;
+  font-family: sans-serif }
+
+div.hint p.admonition-title, div.important p.admonition-title,
+div.note p.admonition-title, div.tip p.admonition-title {
+  font-weight: bold ;
+  font-family: sans-serif }
+
+div.dedication {
+  margin: 2em 5em ;
+  text-align: center ;
+  font-style: italic }
+
+div.dedication p.topic-title {
+  font-weight: bold ;
+  font-style: normal }
+
+div.figure {
+  margin-left: 2em }
+
+div.footer, div.header {
+  font-size: smaller }
+
+div.system-messages {
+  margin: 5em }
+
+div.system-messages h1 {
+  color: red }
+
+div.system-message {
+  border: medium outset ;
+  padding: 1em }
+
+div.system-message p.system-message-title {
+  color: red ;
+  font-weight: bold }
+
+div.topic {
+  margin: 2em }
+
+h1.title {
+  text-align: center }
+
+h2.subtitle {
+  text-align: center }
+
+hr {
+  width: 75% }
+
+p.caption {
+  font-style: italic }
+
+p.credits {
+  font-style: italic ;
+  font-size: smaller }
+
+p.label {
+  white-space: nowrap }
+
+p.topic-title {
+  font-weight: bold }
+
+pre.address {
+  margin-bottom: 0 ;
+  margin-top: 0 ;
+  font-family: serif ;
+  font-size: 100% }
+
+pre.line-block {
+  font-family: serif ;
+  font-size: 100% }
+
+pre.literal-block, pre.doctest-block {
+  margin-left: 2em ;
+  margin-right: 2em ;
+  background-color: #eeeeee }
+
+span.classifier {
+  font-family: sans-serif ;
+  font-style: oblique }
+
+span.classifier-delimiter {
+  font-family: sans-serif ;
+  font-weight: bold }
+
+span.interpreted {
+  font-family: sans-serif }
+
+span.option {
+  white-space: nowrap }
+
+span.option-argument {
+  font-style: italic }
+
+span.pre {
+  white-space: pre }
+
+span.problematic {
+  color: red }
+
+table {
+  margin-top: 0.5em ;
+  margin-bottom: 0.5em }
+
+table.citation {
+  border-left: solid thin gray ;
+  padding-left: 0.5ex }
+
+table.docinfo {
+  margin: 2em 4em }
+
+table.footnote {
+  border-left: solid thin black ;
+  padding-left: 0.5ex }
+
+td, th {
+  padding-left: 0.5em ;
+  padding-right: 0.5em ;
+  vertical-align: top }
+
+th.docinfo-name, th.field-name {
+  font-weight: bold ;
+  text-align: left ;
+  white-space: nowrap }
+
+h1 tt, h2 tt, h3 tt, h4 tt, h5 tt, h6 tt {
+  font-size: 100% }
+
+tt {
+  background-color: #eeeeee }
+
+ul.auto-toc {
+  list-style-type: none }
+*/
+
+div.section {
+  margin-top: 1.0em ;
+}