Update .travis.yml

Update .travis.yml

remove gulp test task; fix travis config

update travis script

Initial Reorganization ...

This commit was the first to start the rewrite of PIXI

1. Removes meta files not necessary to be in the core repo (docs,
examples, random trim/ folder, etc)
2. Rewrite grunt workflow to be gulp
3. Setup testing and browserify tasks to prepare for code rewrite
4. Trim trailing space from the readme

Fix tavis yaml, manually merge #486

change travis script

update travis file to be more explicit

Squashed commit of the following (unittest-refactor): ...

commit 9887e45
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Tue Sep 3 10:54:13 2013 -0700

    FIX: Ellipse getBounds method is not static

commit b3b359a
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Tue Sep 3 10:53:41 2013 -0700

    More unit testing

commit dafbd1d
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 16:04:29 2013 -0700

    Remove unused karma plugin

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

    Add Travis CI status image to README

commit 2e38ba3
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 15:16:54 2013 -0700

    typo

commit b889803
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 ea414dd
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 9e09c87
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 14:37:51 2013 -0700

    Add back serving png files, convert to spaces

commit b45b165
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sun Sep 1 00:55:57 2013 -0700

    Comment out functional tests for now

commit 3a350bf
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 ac4c6de
Author: Dr. Kibitz <info@drkibitz.com>
Date:   Sat Aug 31 23:33:23 2013 -0700

    Remove trailing whitespace