Cleaned and tidied up the examples

Replace `==` on `===` in examples

Replace `tabs` char on 4 `spaces` chars in examples

Added a valid property to texture ...

Used to check that a texture is good to render

Added updateSrc function to baseTexture ...

BaseTexture src can now be updated on the fly
EventDispatcher bug fixed (removing listener on dispatch)
Text example tweaked
Canvas strip triangle padding added

added width and height properties to displayObject ...

Also anded render back into text example

Even more clean-up

First batch of examples cleaned up ...

Mostly cosmetic improvements

Docs, examples again, test folder, removeAll func

Cleaned the examples and the src a bit, plus docs

- using a single JS source for all examples instead of duplicating files unnecessarily. ...

- updating Gruntfile and package.json to include grunt-concat-sourcemap and grunt-contrib-watch for easier development.
- use "grunt build-debug" to build a source-mapped file to pixi.dev.js -- or use "grunt watch" during development of examples to auto build-debug any JS changes to PIXI source or the example files.

Remove trailing whitespace

fix font not being served as text/xml on dev server (causes IE explosion)

Linked List update

text update

bitmap fonts

moved text style params to separated object

multiline text

text example updated

published pixi

Text added to PIXI ...

destroy function added to textures too
docs updated
new example added