Edit due date view has been implemented.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Links has been added for units.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch

Conflicts:
	src/main/java/org/ednovo/gooru/client/mvp/classpages/classsetup/ClassSetupPresenter.java
	src/main/java/org/ednovo/gooru/client/mvp/classpages/unitdetails/UnitAssignmentPresenter.java
	src/main/java/org/ednovo/gooru/client/mvp/classpages/unitdetails/UnitAssignmentView.java
Merge pull request #1580 from shivalinga/dev-branch

Edit due date view has been implemented.