add in notes about API
move everything to v2
Remove duplicate permissions (bug 1071971)
Add in API to alter canned responses (bug 1063743)

Also moved a couple of existing reviewers serializers to the appropriate file.
Merge pull request #2580 from diox/api-canned-responses

Add in API to alter canned responses (bug 1063743)
Merge pull request #2583 from JaredKerim-Mozilla/1071971

Remove duplicate permissions (bug 1071971)
Fix test by changing to region with no ratings body
Added recommendations API (bug 1063795)
Merge pull request #2581 from andymckay/api

add in notes about API versioning