close/resize functions should not be prototype methods

[kylefox]

Calling $.fn.modal.close(); and $.fn.modal.resize() is a bit gross. These methods behave as functions because they close the current modal, regardless of which object they were invoked upon.

A more correct solution would be $.modal.close() and $.modal.resize()

• This would be a backwards-incompatible change and thus the version number should be bumped accordingly.
• Don't forget to update README.

[adiospace]

Hi Kyle,

I had some spare time today, so I did this too. Take a look at #10.