Fixed CHANGELOG for 1.2.0
.gitignore should not be in stable
Fixed version number
Fixed date for 1.2.0

Date was missing
Added browserconfig.xml for Internet Explorer 11.

Internet Explorer sends request for browserconfig.xml on Win8.1 when
pinning a site. Added it and images(more images now because it wont slow
the site down).
http://msdn.microsoft.com/en-us/library/ie/dn455106.aspx