#598 Update several prts of Apiv2 docs
#598 updated docummentation for several APIv2 resources
#598 updated more docummentation for several APIv2 resources
Fixed cache key bug in api content search (prevent it from being longer than 250 chars)
#598 Small fixes in apiv2 docs
Improved exception handling and exception error messages
Fixed apiv2 bug when cleaning page_size parameter
Improved exception handling in the api
#598 Small fix in apiv2 docs
Bugfix in permission_granted view in apiv2
Updated APIv2 todo
#615 Added resource to edit already existing sound descriptions in Apiv2. Several fixes.
Started implemented force logout for API, added link to logout on authorized app template
Refactored support for logging out Oauth2 logged in users with Apiv2
Added partial throttling functionality to the API.
Added support for using different throttling limit rates on different view classes
Added throttling_level field in apiv2 credential model
Throttling now retrieves throttling level from api client model. Defined reasonable throttling levels.
Updated migration file so throttling_level default is set to 1
Updated apiv2 TODO