add custom dimensions for GIF
Merge pull request #7 from ednapiranha/custom-dimensions

add custom dimensions for GIF
updated dist/ files
Utilize node/npm for the dist build step.

This removes a dependency on a unix-like environment for building
the dist files, and makes it easier to pull in the necessary build
dependencies (browserify, uglify).
Merge pull request #8 from ednapiranha/dist-update

updated dist/ files
Merge pull request #9 from tec27/node_build

Utilize node/npm for the dist build step.
Update minified dist/ files
Increase version number, also put it on the README on top of everything for clarity's sake.
Merge branch 'master' into dithering

Conflicts:
	src/build.sh
Also include Dithering.js in the worker when building dist/ files
super hacked dithering
Adding a test to demonstrate using different palettes
Use Quantizer to build palette if none provided
Also render multi frame animated gif in the custom_palette example
speccing options in the README