add dead zone low filter for joystick axis motions

Added dead zone low filter for joystick axis motions, removing unnecessary spam from joystick analog sticks.
Base filter set default at value 1000. Tested with multiple gamepads connected at the same time (Sony PS3).
style update
Null data fix on Neko
Merge pull request #168 from Hasufel/patch-3

add dead zone low filter for joystick axis motions
Add OpenAL shutdown
Merge branch 'master' of https://github.com/haxenme/nme
Fix sound.length when using streaming OGG audio
added TILE_RECT flag to Tilesheet
added TILE_ORIGIN flag
added TILE_ORIGIN flag to Graphics
Merge pull request #169 from Beeblerox/TILE_RECT

added TILE_RECT flag to Tilesheet
When creating typed arrays, the third parameter is element count, not byte count
Add changelog
Better font family handling
Do not double-up the debug output
Expose unhandled exceptions as callback
Update meta
Fixes for waxe ManagedStage
Set TextField colors to match PsychicLights

Also changes the mask so that the SDL2 cursor is white instead of black. BUt since I use my own cursor it won't be needed.
Revert "Set TextField colors to match PsychicLights"

This reverts commit 9fa8a908a60a8a482b18d0dd0083ebda315fa7c0.