Placeholder Password Box Support

Hi Andrew,

Thanks for this plug-in.  It's working great providing IE support for placeholders.  I have tested.  The ability to add password support was a requirement for one of our projects, so I went ahead and added this support.  Feel free to review the code.  It basically creates a "fake" text input until a user actually gives it focus, then switches it out with the real password field.  I'm open to suggestions or concerns.

Thanks again for your hard work on this!

Jacob Bolton