summary and progress buttons feature implemented
Unit's more details button functionality has been implemented.
Change assignment status functionality has been implemented in unit setup page.
Merge pull request #1667 from ssushma/dev-branch

summary and progress buttons feature implemented
Merge pull request #1669 from shivalinga/dev-branch

Unit's more details button functionality has been implemented.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

Conflicts:
	src/main/java/org/ednovo/gooru/client/mvp/classpages/tabitem/assignments/collections/CollectionsView.java