Merge pull request #1763 from sravanthi1/dev-branch

"study popup top position adjusted"
Added comments....
Resolved Conflicts.

Conflicts:

src/main/java/org/ednovo/gooru/client/mvp/classpages/unitSetup/AssignmentsContainerWidget.java
Merge pull request #1764 from VinRudramurthy/dev-branch

Added comments....
"Unit Name added dynamically in treePanel Click handler and success popup view when collection/folder is added to pathway"