Fix rst formatting and cross-references

blueprint sphinx-doc-cleanup
bug 944385

- Fix formatting and markup issues that produce error messages
- Update TOC lists for missing/new files
- Fix a few links
- Update instructions with dependencies for building the documentation
- Updated base on review comments from oubiwann to fix trailing whitespace in modified files

Change-Id: I589152bfab9c543d2b11fa8bed2344259aa90675

doc/README.rst

@@ -2,7 +2,29 @@
 Building the docs
 =================
 
-It is really easy. You'll need sphinx (the python one) and if you are using the virtualenv you'll need to install it in the virtualenv specifically so that it can load the nova modules.
+Dependencies
+============
+
+Sphinx_
+  You'll need sphinx (the python one) and if you are
+  using the virtualenv you'll need to install it in the virtualenv
+  specifically so that it can load the nova modules.
+
+  ::
+
+    pip install Sphinx
+
+Graphviz_
+  Some of the diagrams are generated using the ``dot`` language
+  from Graphviz.
+
+  ::
+
+    sudo apt-get install graphviz
+
+.. _Sphinx: http://sphinx.pocoo.org
+
+.. _Graphviz: http://www.graphviz.org/
 
 
 Use `make`

doc/source/conf.py

@@ -78,7 +78,12 @@ version = nova_version.canonical_version_string()
 #today_fmt = '%B %d, %Y'
 
 # List of documents that shouldn't be included in the build.
-#unused_docs = []
+unused_docs = [
+    'api_ext/rst_extension_template',
+    'man/novamanage',
+    'vmwareapi_readme',
+    'installer',
+    ]
 
 # List of directories, relative to source directory, that shouldn't be searched
 # for source files.

doc/source/index.rst

@@ -48,12 +48,13 @@ Key Concepts
 
    cloud101
    nova.concepts
-   swift.concepts
    service.architecture
-   nova.object.model
-   swift.object.model
+   object.model
    runnova/index
 
+..   swift.concepts
+..   swift.object.model
+
 Developer Docs
 ==============