Revert "Temp fix for api/keystone.py"

This reverts commit d0403e9318660e6cfa42c02c6be3b2b800548593.
https://review.openstack.org/#/c/9582 was merged in July.

Change-Id: I24929f9b48cde53cc9d0c27a57dc078e0e9a5579
Fix bug 1055929 - Can not display usage data for Quota Summary.

Change-Id: I051e97f14375714d22303ad44a9f0b16aa7d6c51
Pin docutils to 0.9.1, fix pep8 errors

Docutils 0.10 breaks manpage generation in sphinx 1.1.3. A fix to
sphinx has been merged, but not yet released (scheduled for dec
24-31). In the mean time, we should pin docutils to 0.9.1.

Also fixes new pep8 errors as reported by pep8 1.3.4.

Change-Id: Icedae7bf70c7feaf9f1631c3a2cc3bea67570956
Specify floating ips table action column's width

Fixes bug 1081875

Change-Id: Id92a1c7afa829ef2ff8e973919900cf7cb7c59e9
Merge "Fix bug 1055929 - Can not display usage data for Quota Summary." into stable/folsom
Merge "Revert "Temp fix for api/keystone.py"" into stable/folsom
Allow setting nova quotas to unlimited

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

Fix bug 1082489

Change-Id: I2e1e53f6a5a33f2b248decc9d94f5a430f383508
Add a check for unlimited quotas

This extra check will prevent Horizon to
misunderstand "-1" value when tallying quotas,
setting the "Available" field to inf
instead of 0.

Change-Id: Idfeb9a10b8ce8eea1a39b3d48dffe08d6450fadd
Fixes: bug #1084976
Merge "Specify floating ips table action column's width" into stable/folsom
Merge "Allow setting nova quotas to unlimited" into stable/folsom
Merge "Add a check for unlimited quotas" into stable/folsom