all images from chicagosummeroflearning.org now hosted in repo.
replaced google font links w/ in-repo font files.
init jscolor on dom ready instead of load event.
added requirejs and its text plugin.
Convert to requirejs.

Primarily to support optimized builds, though there are obviously other
benefits.
include require.js in optimized build.
made filepicker.io.js a requirejs module.