Windows 8.1: Fixed touch scrolling and the js errors

Working with ionic on Windows 8.1 most of it is working great.

The main problem I had was the touch scrolling didn't work. This fix for this is to add the `-ms-content-zooming: none;` to the body tag. This tag disables user zooming which seems to cause the mspointer events to be incorrectly fired resulting in touch scrolling not working.

The others were javascript errors I'd come across, mainly related to methods that don't exist or are unsupported. Windows Store javascript apps fail certification if there are any js errors during the certification process.