FlxTransitionableState: support starting transitions without state changes, closes #101

transitionIn() and transitionOut()
Fixed visual glitch with switch-state transitions
Merge pull request #102 from larsiusprime/dev

Fixed visual glitch with switch-state transitions
FlxTilemapExt alpha, color, blend support
Fix parent
minor fix
Merge pull request #104 from kevinresol/fix_weapon

Fix weapon
FlxNestedSprite.isColored is not set

FlxNestedSprite.isColored was not set for FLX_RENDER_TILE so the 'color' was ignored under Android for example.
Merge pull request #105 from davellx/patch-1

FlxNestedSprite.isColored is not set
Issue 106: Accept angle in degrees and convert to radians for internal calculations
Merge pull request #107 from epitomus/issue/106

Issue 106: Accept angle in degrees and convert to radians for internal calculations, fixes #106
FlxTrail: compatibility with flipX / flipY + some cleanup
New class: FlxScene

Load scenes (entities, sprites, text, button, constants, tile map,
backgrounds) from XML file.
Merge pull request #108 from AndreiRegiani/dev

New class: FlxScene
Issue 109: Handle case when bulletFactory returns null
Merge pull request #110 from epitomus/issue/109

Issue 109: Handle case when bulletFactory returns null, closes #109
* 'tweet' typo
* set scene by constructor
* make <scene> attributes optional
* make <constants> node optional
* minor code style update
Merge pull request #111 from AndreiRegiani/dev

Make <constants> node optional, constructor and more...
* check for null first! (avoid crash if no layer is specified)
* `graphic` instead of `graphics` for <sprite graphic="foo.png">
Merge pull request #115 from AndreiRegiani/dev

Minor fixes