Integrated re-order ui for assignments in unit set up.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Added reorder widget for assignment at unitsetup.
Resolved conflicts.

Conflicts:

src/main/java/org/ednovo/gooru/client/mvp/classpages/unitdetails/UnitAssigmentReorder.java

src/main/java/org/ednovo/gooru/client/mvp/classpages/unitdetails/UnitAssignmentView.java
Merge pull request #1639 from VinRudramurthy/dev-branch

Integrated re-order ui for assignments in unit set up.