don't put vim swap files or mac ds_store files in git
changes from the cordova build process
heeding warning about ios7 width/height stuff.
purging some cordova boilerplate
oops, don't really want those in git
lets leave platforms out, since its all generated stuff.
adding the barcode scanner plugin
borrowing scanner code from here: https://github.com/cfjedimaster/Cordova-Examples/tree/master/barcode/www