Check the display name for volumes on AJAX polls.

If a volume is created from the CLI without a name,
its displayed name on the Dashboard will be its id.

Change-Id: I806df643d7a2e0e93db673ea9718fe30927d930e
Implements: Display name check for unnamed volumes
Fixes: bug #1070042
Allow setting nova quotas to unlimited

To set a quota to unlimited it is set to -1

Fix bug 1082489

Change-Id: I8e79873742b5dbe54c309e480c65bbe304d5eb61
Merge "Allow setting nova quotas to unlimited"
Horizon escapes special characters in openrc.sh

Adding the safe filter makes it possible to have tenant names with
special charaters rendered into the openrc.sh file without escaping
those characters.

Added a new unittest for templates

Change-Id: I56ec047da467b721bd1b57d2c97d05717e83f468