implemented add functionality in player
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
resolved conflict
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #992 from nutan-gooru/dev-branch

Implemented add functionality in player
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch

Conflicts:
	src/main/java/org/ednovo/gooru/client/mvp/play/collection/CollectionPlayerPresenter.java