Integrate instagram-gl

Integrate infragram-gl with infragram-js. If WebGL is not available JS version takes over. Changes summary by file:

Makefile - Modified to allow for compilation of multiple coffee files.
Readme.mkd - Correct project name.
dispatch.coffee - Contains code that calls JS or GL version of event handling functions depending on the availability of WebGL feature.
index.html - Stripped from javascript code and is also validated by validator.w3.org.
infragram-gl.coffee - Implements all features of original instagram.js using WebGL.
infragram.coffee - Improved download. Fixed HSV color mixer.
infragram.css - Moved canvas size back to html.
infragram.js - Compiled file.
shader.frag - Fragment shader template.
shader.vert - Vertex shader.
webglutil.js - Helper library for WebGL.