Can't add any more repeated activities to the collection
Merge branch 'develop' of github.com:natgeo/modules-activitystream into feature/MIE-1524

Conflicts:
	app/scripts/views/stream.coffee
deleted console.log
Added condition to prevent deferred to be created several times when calling several times 'ready' method
Removed parentesis in $.when for better code styling
Merge pull request #32 from natgeo/feature/MIE-1524

MIE-1524 resolved the first time an activity is generated it is shows duplicated