DOC: add links to theory and python in sidebar

Author: hagenw

doc/_static/css/title.css

@@ -0,0 +1,33 @@
+.wy-side-nav-search>a, .wy-side-nav-search .wy-dropdown>a {
+    font-family: "Roboto Slab","ff-tisa-web-pro","Georgia",Arial,sans-serif;
+    font-size: 200%;
+    margin-top: .222em;
+    margin-bottom: .202em;
+}
+.wy-side-nav-search {
+    padding: 0;
+}
+form#rtd-search-form {
+    margin-left: .809em;
+    margin-right: .809em;
+}
+.rtd-nav a {
+    float: left;
+    display: block;
+    width: 33.3%;
+    height: 100%;
+    padding-top: 7px;
+    color: white;
+}
+.rtd-nav {
+    overflow: hidden;
+    width: 100%;
+    height: 35px;
+    margin-top: 15px;
+}
+.rtd-nav a:hover {
+    background-color: #388bbd;
+}
+.rtd-nav a.active {
+    background-color: #388bbd;
+}

doc/_template/layout.html

@@ -0,0 +1,14 @@
+{% extends "!layout.html" %}
+{% block sidebartitle %}
+
+  <a href="{{ pathto(master_doc) }}"> {{ project }}</a>
+
+  {% include "searchbox.html" %}
+
+	<div class="rtd-nav">
+		<a href="http://sfstoolbox.org/">Theory</a>
+		<a class="active" href="http://matlab.sfstoolbox.org/">Matlab</a>
+		<a href="http://python.sfstoolbox.org/">Python</a>
+	</div>
+
+{% endblock %}

doc/conf.py

@@ -48,10 +48,12 @@
 def setup(app):
     """Include custom theme files to sphinx HTML header"""
     app.add_stylesheet('css/abbr.css')
+    app.add_stylesheet('css/title.css')
 
 html_theme = "sphinx_rtd_theme"
 html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 html_static_path = ['_static']
+templates_path = ['_template']
 html_title = "SFS Toolbox"
 html_short_title = ""
 htmlhelp_basename = 'sfs-matlab'