Fix up status bar plugin

@dbreese gets all of the credit for tracking this down.  I just took a peek at his narrow-down, and quickly saw a way to put him out of his misery. ;-)  `statusbar.js` wasn't properly "post-prepare" wrapped, so it was blowing up when Cordova tried to access it.

I took the liberty of updating to the latest version too.
Interesting code for orientation.