Closes-Bug: #1195571 -- Updated quotas section with new info.

Updated quotas section with already updated Admin User Guide info.
Now contains info for both Compute and Block Storage quotas. Also
switched out <> for <replaceable> tags, and deleted a couple of
white spaces.

Updates to 1.9.2 of maven plugin in pom.xml.

Change-Id: I74c269020209323d69b5bd293e7d8fcd3ad5e3fe
Merge "Closes-Bug: #1195571 -- Updated quotas section with new info."