ClassPage: Initial commit on deleting assignment at Unit set up.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch

Conflicts:

src/main/java/org/ednovo/gooru/client/mvp/classpages/unitSetup/UnitsAssignmentWidgetView.java
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #1602 from VinRudramurthy/dev-branch

	ClassPage: Initial commit on deleting assignment at Unit set up.