Merge pull request #12 from safdarzeeshan/zeeshan_dev

Zeeshan dev
Adding facebook auth
Merge pull request #14 from safdarzeeshan/feature/socialauth

Adding facebook auth
Updating requirements file
Merge pull request #15 from safdarzeeshan/feature/socialauth

Updating requirements file
small cosmetic changes
hard stop on clicking stop, no pause
pause button for SoundCloud
pause functionality for youtube
seekbar
duration display