Cross browser and Mobile support

Cross browser and Mobile support (0.2.0)

Unit Test (test/index.html)

• Chrome 57.0.2987.110 (64-bit): passed
• FireFox 52.0.1 (64-bit): passed
• Safari: OAC does not return a promise.
• Edge: N/A

Example, Optimized (examples/foa-renderer.html)

• Chrome 57.0.2987.110 (64-bit): passed
• Chrome Android 56.0.2924.87 (Android 7.1.1, Nexus 6P): passed
• FireFox 52.0.1 (64-bit): passed
• Safari 10.0.3 (12602.4.8): passed
• Edge: N/A

Example, Legacy (examples/foa-decoder.html)

• Chrome 57.0.2987.110 (64-bit): passed
• Chrome Android 56.0.2924.87 (Android 7.1.1, Nexus 6P): passed with very small glitches
• FireFox 52.0.1 (64-bit): passed
• Safari 10.0.3 (12602.4.8): passed
• Edge: N/A