check browser version, blacklisting outdated IE (version < 10)
Merge branch 'check_browser_version' of https://github.com/vicvega/gitlabhq into vicvega-check_browser_version

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	CHANGELOG
	app/assets/stylesheets/generic/common.scss
Merge branch 'vicvega-check_browser_version' into 'master'

Check browser version

Fix conflicts and merge https://github.com/gitlabhq/gitlabhq/pull/8385

See merge request !1357
Merge branch 'master' of github.com:gitlabhq/gitlabhq