Bug#894027: use correct module when building docs

Currently the wrong directory is searched for the
glance module, requiring glance to be installed
in the default system path, for docs to be buildable.
Also the path was appended, so the default system version
which may be completely different is referenced.
This ensures that only local glance files are referenced.

Change-Id: Ia226c90bbd24d7804401a7c9e444387c78a0f542

Authors

@@ -24,6 +24,7 @@ Mark McLoughlin <markmc@redhat.com>
 Matt Dietz <matt.dietz@rackspace.com>
 Mike Lundy <mike@pistoncloud.com>
 Monty Taylor <mordred@inaugust.com>
+Pádraig Brady <P@draigBrady.com>
 Paul Bourke <paul-david.bourke@hp.com>
 Rick Clark <rick@openstack.org>
 Rick Harris <rconradharris@gmail.com>

doc/source/conf.py

@@ -33,10 +33,10 @@
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.append([os.path.abspath('../glance'),
-    os.path.abspath('..'),
-    os.path.abspath('../bin')
-    ])
+sys.path = [os.path.abspath('../../glance'),
+    os.path.abspath('../..'),
+    os.path.abspath('../../bin')
+    ] + sys.path
 
 # -- General configuration ---------------------------------------------------