Fix Membership list loading bug

When loading a page on its own that contains the membership workflow,
the member lists would not get populated.

Also include a Selenium unit test to avoid similar regressions in the
future.

Change-Id: I5f23da271313f3ddf4acded221864ef5ba83f0eb
Closes-Bug: #1288270
Error message in create vol with a vol source

Updating the error message in the create volume form
for the case where the volume source is another volume
and the current volume size is less than the volume source

Change-Id: I53d5e9ffdea4344bafcaf3e0623e2e39c4c259be
Closes-Bug: #1291244
Make project left-side menu titles consistent

The left-side menus of project dashboard looks inconsistent:
some panel names have "Manage" and some do not.
This commit removes "Manage" from the titles.

Change-Id: I822d2fa483dd9f732e2ba805732e2f4bdf3225af
Closes-Bug: #1289538
Merge "Make project left-side menu titles consistent"
Merge "Error message in create vol with a vol source"
Merge "Fix Membership list loading bug"