Update documentation

Remove unused code only content from documentation:
* Installation document
* Usage document
* Search in code modules
* Search for functions

Change-Id: I7c6c492a1efe9d078e4233ace986989de7941e88

doc/source/index.rst

@@ -1,10 +1,5 @@
-.. openstack-ux documentation master file, created by
-   sphinx-quickstart on Tue Jul  9 22:26:36 2013.
-   You can adapt this file completely to your liking, but it should at least
-   contain the root `toctree` directive.
-
 Welcome to openstack-ux's documentation!
-========================================================
+========================================
 
 Contents:
 
@@ -12,14 +7,10 @@ Contents:
    :maxdepth: 2
 
    readme
-   installation
-   usage
    contributing
 
 Indices and tables
 ==================
 
-* :ref:`genindex`
-* :ref:`modindex`
 * :ref:`search`
 

doc/source/installation.rst

@@ -1,12 +0,0 @@
-============
-Installation
-============
-
-At the command line::
-
-    $ pip install openstack-ux
-
-Or, if you have virtualenvwrapper installed::
-
-    $ mkvirtualenv openstack-ux
-    $ pip install openstack-ux

doc/source/usage.rst

@@ -1,7 +0,0 @@
-========
-Usage
-========
-
-To use openstack-ux in a project::
-
-    import foo