Fix error when follow RSS product result to Google Shopper

git-svn-id: http://zxing.googlecode.com/svn/trunk@2793 59b500cc-1b3d-0410-9834-0bbf25fbcc57
Require Android 2.3 / API 10 for Barcode Scanner. Enable Holo theme and action bar for Android 4.x

git-svn-id: http://zxing.googlecode.com/svn/trunk@2794 59b500cc-1b3d-0410-9834-0bbf25fbcc57