Implement the option to 'unstuck' a bottom bar

I've implemented the patch from
https://github.com/imakewebthings/jquery-waypoints/issues/172 as
coffeescript.

Works well for my application and tests still pass (though I've add no new tests for this functionality)
Add bower.json

This file allows this package to be installed using Bower. The package
has already been registered as `jquery-waypoints` in the Bower package
registry. It can now be installed by executing:

  bower install jquery-waypoints

More information on Bower can be found at:

  https://github.com/bower/bower
  http://bower.io
Update CHANGELOG.md
Update README.markdown
Merge pull request #200 from lencioni/bower

Add bower.json
Update bower to 2.0.4
Merge branch 'master' of github.com:ideasasylum/jquery-waypoints into 192-merge
Cleanup and document the direction option for sticky shortcut, #192
#207, make infinite shortcut destroy/recreate instead of disable/enable
#225, make unsticky nondestructive if called on nonsticky element
Fix infinite shortcut, Chrome fixtures still hosed
Fix Infinite tests in Chrome
#253, moved options cloning to occur before handler assignment
#260, remove More link when infinite shortcut reaches end
#262, use window instead of this, allows Browserifyication
#272, remove stray references to GPL license
#283, stop using deprecated jQuery load method
Protect license comment with ! for uglify

Signed-off-by: Mathieu Doyon <mathieu.doyon@studiofrenetic.com>
Update changelog, version references for 2.0.5 release
Merge branch 'master' into gh-pages