Version response compatible with Folsom

This change adds <link> elements to the <version id="v2.0">
element in the version response to be compatible with the
response given by the Keystone server in the Folsom release.

Fixes bug 1187101

Change-Id: Ida71e2dbe3cf432d429fb739e68a83d7e009ca40
Remove explicit distribute depend.

Causes issues with the recent re-merge with setuptools. Advice from
upstream is to stop doing explicit depends.

Change-Id: I5acb02230226d9842b8524d03f97857863f32932
Merge "Version response compatible with Folsom"
Merge "Remove explicit distribute depend."