Turning off bump mapping for andriod devices due to problems on dFdx() and dFdy().  Also turning off access to the deferred renderer for Android devices for the same reason.
Merge pull request #14 from arturo-mayorga/mobile-rendering

Turning off bump mapping for android devices due to problems on dFdx() a...
Merge pull request #4 from ArmatureLabs/master

Pulling from AL