Make Image Service image formats configurable

Allow configuration of the available image formats
for image creation (corresponds to a feature added
Glance).

Incidentally fixes a test issue where the domain_get
call wasn't being properly stubbed out.

Fixes bug 1216157

Change-Id: Ifc72915d34767ce83f9d85b92ddeae0c2c00b8c6
Moves SECRET_KEY generation to base settings.py file

By putting the fallback SECRET_KEY generation into the base
settings.py file we can ensure there is always a SECRET_KEY
even if local_settings.py doesn't exist. All this really does
is move the current default in local_settings.py into
settings.py.

This fixes the failures during docs building, etc. due to
SECRET_KEY not being set.

Contains a few changes to fix errors/warnings during
docs building as well.

Fixes bug 1188622 and fixes bug 1178663.

Change-Id: I5d945deba7062fe42bcee2e7636ca4a8f4607a31
update neutronclient to 2.3.0 minimum

Change-Id: I84e8087ba557d69d7fc35029f8c1b741f1e326a3
Fixing typos for Resource Usage page

- fixing few typos for resource usage page

NOTE: it needs to go in H3, not RC1 because I am
changing the translated strings.

Change-Id: Ib684424e4cfd4a2437fc53186d07bf977c18086c
Remove spaces from translatable strings

This patchset removes some unnesessary spaces form strings
in load balancers details pages that will be localized.

Fixes bug 1220686

Change-Id: I216394028876045ba29b5b7cc75ca2495c4a855c
Merge "Make Image Service image formats configurable"
Merge "Fixing typos for Resource Usage page"
Merge "Remove spaces from translatable strings"
Merge "Moves SECRET_KEY generation to base settings.py file"
Merge "update neutronclient to 2.3.0 minimum"