"Classcode toolt"ip changes fixed.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

Conflicts:

src/main/java/org/ednovo/gooru/client/mvp/classpages/edit/EditClasspageView.java

src/main/java/org/ednovo/gooru/shared/util/MessageProperties.java
Merge pull request #500 from sravanthi1/dev-branch

"Tooltip changes fixed for classcode in teach"