Fix hogan js templates in IE8

Fixes: bug #1110226

Incorrect usage of the templating framework
as the html should be provided and not text? Weird
that it worked in other browsers though.

As part of the fix hogan has also been updated to
the latest official version 2.0.0 which may prevent
other bugs.

Upstream bug has been filed here:
https://github.com/twitter/hogan.js/issues/130

Change-Id: Id5b6cef85dab1f9a497a525f9c065b410c52b38f
Merge "Fix hogan js templates in IE8"