Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
partially implemented displaying collection summary data.
implemented analytics data in assignment view.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch

Conflicts:
	src/main/java/org/ednovo/gooru/client/mvp/classpages/unitdetails/IsUnitAssignmentView.java
	src/main/java/org/ednovo/gooru/client/mvp/classpages/unitdetails/UnitAssignmentView.java
Merge pull request #1833 from shivalinga/dev-branch

implemented analytics data in assignment view.