Merge pull request #21 from acquaintable/master

Allow rails 4 beta testing
changes styling to be less intrusive on body.
adds the concept of "started" so we never **ever** run more than once (can happen when triggering events on window for instance).
builds javascripts.
removes some logic that I thought was working -- will do another pass later.
bump version.
forces phantomjs viewport size to 800x800 (average)
trying to figure out why phantomjs is hanging on travis.
removes diagnostic code.
adds tagline.
updates readme.
fixes link.
fixes the bug in rails javascript_include_tag -- missing uniq after flattening array.
bumps version.
adds crest.
should work with rails 4

- added shims for the asset helpers, but these will hopefully be addressed
- pull request on rails (https://github.com/rails/rails/pull/8681)
- pull request on sprockets-rails (https://github.com/rails/sprockets-rails/pull/33)
- issue opened on sprockets-rails (https://github.com/rails/sprockets-rails/issues/32) -- though I suspect it's an issue in rails.
- the shims that we've been adding can cause issues for people who prefix their assets differently.
gets teabag running in ie6+ (assuming all the way to 10)