Added broadcast signals #4022

* Updated the minified file too.

Review ID: 2513001
Merge pull request #1 from tarunbhardwaj/task-4022

Added broadcast signals #4022
Add http interceptor #3641

* Added Interceptors.
* Added new directive for nereidAuth methods.

Review ID: 2473003
Merge pull request #2 from tarunbhardwaj/task-3641

Add http interceptor #3641
Fixed issue in setting user after login

As refreshUserInfo will set user but in login method user wil get override
by data.user.
Merge pull request #3 from tarunbhardwaj/task-3641

Fixed issue in setting user after login #3641
Fixed user cache issue