Remove versionId, versionInfo, versionList from examples

I recall these attributes being discussed at one point
(pre-incubation?), but have never been supported by OpenStack and don't
appear to be defined in any v2.0 WADL/XSD specification.

Change-Id: Ia5b691972c70456e3d62750173e2bfc6e9aec55a
Closes-Bug: 1273831
Change 'oauth_extension' to 'oauth1_extension'

The documentation uses 'oauth1_extension' but the configuration files
an tests use 'oauth_extension'. This change sets all of them to
oauth1_extension.

Closes-Bug: #1275693
Change-Id: I279f08e262d6f1ae8afea58fd46576e3eabf3875
DocImpact: Extension name has been changed in keystone-paste.ini,
therefore the pipeline may need to be adjusted as well
Cleanup docstrings

Some docstrings were not valid RST, which led to incorrect display
and warnings and errors when building the docs.

Change-Id: I66d823a2a5a2a05d51ba1a37a2c22ded2c09f748
Merge "Change 'oauth_extension' to 'oauth1_extension'"
Merge "Cleanup docstrings"
Merge "Remove versionId, versionInfo, versionList from examples"