Merge pull request #24 from Standard8/master

Add a guest login option to the mobile page.
Initial rework of index.html to include automatic detection of facilities
Merge git://github.com/mozilla/socialapi-demo
When needing audio and video, request both at the same time
Complete the initial index.html checks for testing if someone has the right version of FF or not.
Add a reference to the mobile page to make it easier to find
Merge pull request #25 from Standard8/master

Reorder and locate call initiation routines to improve re-use of code
Merge pull request #27 from Standard8/index

Add app feature checking onto the index page, and point to the mobile page
Merge pull request #28 from Standard8/media

If needing both Audio & Video, only make one gUM request
Merge git://github.com/mozilla/socialapi-demo