Fix browse happy text and the firefox logo on IE8, disable IE9 support.

~~This fix contains #1096 and #1097 and should be reviewed afterwards.~~ This patch depends on #1096 and #1097 and should be reviewed afterwards.

fix(client): Fix the styling on outdated browsers.

* Show the "browse happy" link to IE < 9
* Make the firefox logo look respectable on IE < 9

fixes #999
fixes #1014
fixes #1098
issue #1095