Add v2.2 docs. [#67865658]

This needs to be updated when a final release including this feature is
created.
updated url to Quota docs
Merge pull request #14 from shalako/master

fixed providerDisplayName in example response
Add cf release build number to 2.2 docs
Merge pull request #15 from cloudfoundry/v2.2

V2.2
chnage relative link to absolute because page does not exist in all contexts
tweaks to api docs