Little revert to pull requests #14

Hello,

the pull request #14 had a side effect (second commit).

If pressing Mod4+4 (tag 4 configured on screen 2) on screen 1 opened the rename dialog starting with "4:". If pressing Mod4+4 on screen 2 the desired and configured tag opened. I think, this behaviour was not intended, because after creating tag 4 on screen 1 (not the desired one) I couldn't open the configured tag on screen 2 again.

Best regards,
bastorran