Change browser and OS detection. From PHP to JS. For compatibility with cache-servers.

git-svn-id: https://plugins.svn.wordpress.org/ttt-devices/trunk@824699 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add support for IE11

git-svn-id: https://plugins.svn.wordpress.org/ttt-devices/trunk@825515 b8457f37-d9ea-0310-8a92-e5e31aec5664
New version

git-svn-id: https://plugins.svn.wordpress.org/ttt-devices/trunk@826652 b8457f37-d9ea-0310-8a92-e5e31aec5664