Merge pull request #669 from takeit/temp

attach topic on "enter" button hit, don't add new one
Merge pull request #670 from takeit/temp

attach topic on  enter button fix - dont do anything if no topic found
Merge pull request #671 from takeit/temp

WOBS-3215 - Invalid security token is showed during attach images proces...
test
Merge branch 'tw-temp' of github.com:sourcefabric/Newscoop into temp
cherry pick
Create trusted property for API apps
cherry picked
oauth cherry pick
api doc fix