FIlters Added.. again!

some filters added to pixi
example 15 added too
Squashed commit of the following (unittest-refactor):

commit 9887e45976fc5211a4393e588d278a5e10baf06c
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Tue Sep 3 10:54:13 2013 -0700

    FIX: Ellipse getBounds method is not static

commit b3b359ad1c0fae412209705b01081dd231383656
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Tue Sep 3 10:53:41 2013 -0700

    More unit testing

commit dafbd1dbb03364b6d54db0cad26c4f02a8b9efe1
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 16:04:29 2013 -0700

    Remove unused karma plugin

commit 43209bfb59263278d2dc3561d06926ad515c4147
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 15:28:21 2013 -0700

    Add Travis CI status image to README

commit 2e38ba370bc05c239736155dcb06e34b47abf938
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 15:16:54 2013 -0700

    typo

commit b8898030da4d3e7b446ebb4ddeb30e8fc0adcf39
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 15:13:33 2013 -0700

    Lint test files, jsthint:test is now part of the test task

commit ea414dd1d734b39523174bd86d0cc58e920a89d2
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 15:11:50 2013 -0700

    Make all boilerplate tests, and an actual start to writing some real tests

commit 9e09c87997ae924989da4e1685f3a94636ab64de
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 14:37:51 2013 -0700

    Add back serving png files, convert to spaces

commit b45b1650c2e812a9cdb1165d96fba7b14bbdfab7
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 00:55:57 2013 -0700

    Comment out functional tests for now

commit 3a350bf9e4d9fea470ad8e734dfc3542db74ccc8
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sat Aug 31 23:53:35 2013 -0700

    Removed quint, added karma, added resemble.js, refactored unit tests for mocha, added first example visual test

    run with:
    grunt travis

    You should see a brewer open and eventually see the spinning bunny. Then in the terminal, you should see the tests running where it matches frames 30, 60, and 90.

    Conflicts:
    	package.json

commit ac4c6de388e7a37786c9c4a6b2c95e22ec26b05d
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sat Aug 31 23:33:23 2013 -0700

    Remove trailing whitespace
updating Detector to use new ThreeJS method which supports more environments (like SublimeJS)
update Detector.js; now supports SlimerJS and other environments
Merge branch 'detector-fix' of https://github.com/mattdesl/pixi.js into detector-fix
Merge pull request #358 from mattdesl/detector-fix

Updating Detector.js to use latest check
attempt to get a 'webgl' context when 'experimental-webgl' fails
ie11 patch

Tempory patch to force canvas in ie11 until i get webGL working in there
merge dev-webgl-filters into dev
Canvas Tweaks
Canvas + removed
Displacment Map Added
fixed bug in masking example
- 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.
Merge pull request #374 from mattdesl/concat-sourcemaps

Changes to Development Workflow
New Filter Structure

Base Filters now working for graphics and sprite
Filters now nestable
Merge branch 'dev' of https://github.com/GoodBoyDigital/pixi.js into dev
Filters updates

Added new filters
Added ability for filters to have multiple passes
Optimized texture creation for filters
Example updated and redundant files deleted
Tweaks to Filters runing in render Texture

Added Blur Example