Bower package update

The method being used to add the 'chosen' package to the consuming app's bower dependencies was incorrect. This release uses the correct method, so installation in newer ember-cli projects should no longer fail.

NPM compatibility update

Fixed issue with the tmp directory not being in .npmignore. See #20 for additional details.

chosen:maxselected event support

This release adds support for the chosen:maxselected event. See the 'Options' page at http://green-arrow.github.io/ember-cli-chosen/ for more information.

value binding / selection change action

You can now actually use ember-cli-chosen to bind to a value and be notified when the user's selection changes. Overlooked when pushing out v0.0.1.