Added a speed property to FlxEmitter
It will be used when the emitter mode is set to CIRCLE
Removed velocity by mistake, bring it back
fix android key compile error, still broken
fix divergent repo errors
allow FlxAndroidKeyList to access FlxAndroidKeys
restore preventDefaultBackAction
AndroidKeys: BACK and MENU work, can prevent default BACK action, ANY does not work
Added default speed.
use stored iterator for values
revert using maps for input, use alternate method for arrays
fix android input error
FlxAndroidKeys: Fix documentation
Merge branch 'dev' of https://github.com/haxeflixel/flixel into dev
remove unnecessary FlxInput.destroy(), implement Map for input indexing
Merge pull request #1194 from mrcdk/speed_for_emitters

Added a speed property to FlxEmitter
Added keepScaleRatio to the FlxEmitter.
restore calling destroy() on inputs
Merge pull request #1198 from mrcdk/keepScaleRatio_particles

Added keepScaleRatio to the FlxEmitter.
Merge pull request #1195 from steverichey/dev

Correct Android button input errors
Merge pull request #1193 from kevinresol/dev

FlxAngle: Added angleFromFacing. FlxVelocity: DRY