Debugger: Remove the BmpLog window for now

It's only half-implemented / hidden behind a FLX_BMP_DEBUG conditional nobody knows about, it's confusing to have in FlxG's outline
Restore CameraFrontEnd.get_bgColor()
Make FlxSound.fadeIn() and fadeOut() simpler / more intuitive to use
implement state seeds
Fixed FlxGame.gameStart to work when FLX_NO_MOUSE

(ignore my other pull request plz)
some small tweaks
fix for issue #804
Merge pull request #811 from joonjoonjoon/patch-2

Fixed FlxGame.gameStart to work when FLX_NO_MOUSE
less operation at FlxSprite's construction time
forgot to make dirty = true by default
Update README.md
Revert "FlxSpriteUtil: make most functions @:generic with type param, add @:noUsing to some"

This reverts commit 5506016207e4f7ca4d746c070dc0a4a392616573.
Merge pull request #809 from steverichey/dev

Implement state seeds, closes #798
Merge branch 'dev' of https://github.com/HaxeFlixel/flixel into dev
FlxArrayUtil.intFromString() -> FlxStringUtil.toIntArray(), FlxArrayUtil.floatFromString() -> FlxStringUtil.toFloatArray()

Also add @:noUsing to some functins in FlxSpriteUtil
A bit of cleanup for FlxBitmapDataPool
Small fix for FlxVersion
fixes for game resize logic
properly resize game at the startup
removed trace. sorry