Show monitor vendor/name in connectors status.

Signed-off-by: V10lator <v10lator@myway.de>
Changes according to https://gist.github.com/marazmista/2dd049be54431877136f
Also it doesn't display the monitor vendor if it can't figure it out.

Credits for code + ideas for this commit go to @marazmista too.

Signed-off-by: V10lator <v10lator@myway.de>
Merge pull request #2 from V10lator/monitor

Show monitor vendor/name in connectors status.