Merge pull request #11 from seanwash/master

Add class selected to the currently selected li, check for an option with prop selected on page load & assign class selected to corresponding li.
Now compatible with jQuery in noConflict mode. Fixes #13
Fixed Zepto compat.
Fixed double 'change' trigger on selection change.
Updated documentation to cover enabling/disabling. Closes #26
Probably better overflow logic. Going to have Sean test this.
add include_blank option
Updated to more closely match FS coding standards, and use `settings`.
Added `optionTemplate` and `triggerTemplate` as available options.
I accidentally a semicolon.