Update regexes.yaml

changes made to handle the following user agents

Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.21 (KHTML, like Gecko) rekonq/2.2.1 Safari/537.21
* details in issue #237

Mozilla/5.0 (X11; Linux) AppleWebKit/537.6 (KHTML, like Gecko) Chrome/18.0.1025.133 Safari/537.6 Midori/0.4
* detailed in issue #236, but there is more work to be done which is explained in the issue.

* google tv issue is detailed in issue #235