Merge pull request #545 from anilgooru/dev-branch

Fixed Follow and Unfollow issue.
"Added confirmation popup when user change from public to private/sharable"
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch

Conflicts:
	src/main/java/org/ednovo/gooru/shared/util/MessageProperties.java
"Static text changed to message properties file"
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch
implemented api for tags
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #546 from mitraj/dev-branch

Added confirmation popup when user change from public to private/sharable.
Merge pull request #548 from nutan-gooru/dev-branch

implemented api for tags
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

Conflicts:
	src/main/java/org/ednovo/gooru/shared/util/MessageProperties.java
Merge pull request #547 from sravanthi1/dev-branch

"Static text changed to message properties file"
UI Fixes for assignment and class page.
Merge remote-tracking branch 'upstream/dev-branch' into dev-branch

* upstream/dev-branch:
  implemented api for tags
  "Static text changed to message properties file"
  "Added confirmation popup when user change from public to private/sharable"