Merge pull request #31 from kamalhussain/master

Improvements in the sample code and att.me.js
Merge pull request #32 from kamalhussain/master

Sample app improvements
Merge pull request #33 from kamalhussain/master

Muting the local video to eliminate noise
Using IIP as a back-end server and fixing some html
Made a little change so the event could "calling" be compatible with CandyBar.js
Merge pull request #34 from kamalhussain/master

code cleanup
fixes