add utils and extension system
minor changes to README
enable auto indent by default
add tasks for cjs, amd, and globals-only builds
changed namespace to tabOverride
rename doc files
use github.io domain for pages
add links to extensions
improve documentation
add link to style extension
set data attribute in set method
fix sourceMapPrefix, add repository field to package.json
fix bower.json, update RequireJS and QUnit, minor doc changes
added hook system for extensions, update README
update docs for hook system
expose executeExtensions as utility function
clean up and improve JSDoc comments, minor changes
add LICENSE.txt and rebuild for 4.0.0
document hooks in src, improve readme
more readme changes