Ported the playcontrols-table patch to QL 3.0.2.

Yeah, really.
Made playcounteq compatible with QL 3.0.2.

Not sure why it was importing gtk in the first place. /shrug
Added my "Energy Rating" patch.

I can easily backport it to 2.6.3, if there's intrest.
Ported editplaycount to QL 3.0.2.
Ported migratemetadata to QL 3.0.2.