switch sphinx theme, add contents to side

doc/_templates/indexsidebar.html

@@ -1,11 +1,17 @@
-<h3>Downloads</h3>
-<p>Current version: <b>{{ release }}</b></p>
-<p>Downloads:
-<a href="http://pypi.python.org/pypi/asteval/">PyPI (Python.org)</a>
+<h3>Contents</h3>
 
-<p> try <tt>pip install asteval</tt>
+<ul>
+   <li>&nbsp; &nbsp;<a href="{{ pathto('installation') }}"> Installing Asteval</a></li>
+   <li>&nbsp; &nbsp;<a href="{{ pathto('basics') }}">     Using Asteval</a></li>
+   <li>&nbsp; &nbsp;<a href="{{ pathto('api') }}">    Astevel Reference</a></li>
+   <li>&nbsp; &nbsp;<a href="{{ pathto('motivation') }}"> Motivation for Asteval</a></li>
+</ul>
 
-<p>
-Development version: <br> &nbsp; &nbsp; <a href="https://github.com/lmfit/asteval/">github.com</a>
+<h3>Get Asteval</h3>
+<p>Current version: <b>{{ release }}</b></p>
+<p>Install:         <tt>pip install asteval</tt></p>
+<p>Develop:
+  &nbsp; <a href="https://github.com/lmfit/asteval/">github.com</a>
+  <p>
 
 <hr>

doc/conf.py

@@ -97,7 +97,7 @@
 
 # The theme to use for HTML and HTML Help pages.  Major themes that come with
 # Sphinx are currently 'default' and 'sphinxdoc'.
-html_theme = 'sphinxdoc'
+html_theme = 'bizstyle'
 
 # html_theme = 'nature'
 # html_theme = 'agogo'