Added touch joystick example

Using Clay.io's HTML5 Virtual Game Controller
add gamecontroller.js to view_lite.html for the side_view layout
Small link updates.
Merge pull request #134 from gabehollombe/touch_joystick_example

Added touch joystick example
Added BitDeli badge.
Merge branch 'origin/dev'

Conflicts:
	README.md
Merge branch '1.2' of https://github.com/photonstorm/phaser into 1.2
Merge branch '1.2' of https://github.com/photonstorm/phaser into 1.2
endless loop when in Phaser.Group when destroy children fixed (use parent not group)
Merge pull request #463 from georgiee/fix-group

Fixed Phaser.Group#destroy(true)
Fixed InputHandler group check #463
Phaser.Animation.frame now returns the frame of the current animation, rather than the global frame from the sprite sheet / atlas (fix #466)
Sprite and Image now remove any masks that may have been set when they are destroyed.
When adding a Group if the parent value is null the Group won't be added to the World, so it's up to you to add it when ready. If parent is undefined it's added to World.
When adding a Group if the parent value is `null` the Group won't be added to the World, so you can add it when ready. If parent is `undefined` it's added to World by default.
Updated version of p2
Display Objects now clean-up their children properly on destroy.
renderXY added back into RenderTexture.
Fixing up documentation, missing functions, examples and alpha masks.
BitmapData.alphaMask will draw the given image onto a BitmapData using an image as an alpha mask.