b/15746774 Task dropdown in Task Group now has functioning Create New
Merge remote-tracking branch 'origin/develop' into feature/create-task-in-task-group

Conflicts:
	src/ggrc/assets/javascripts/controllers/modals_controller.js
Merge pull request #1497 from reciprocity/feature/create-task-in-task-group

Create New link for Task autocomplete in Task Group widget.