Revert "[LMP] GStreamer 1.0 runtime probe fixes."

This reverts commit 8c680b5b3f09c600a13000af4fd2ecf7db3f4c2b.
[Azoth CH] Register QList<int> type.
[Azoth Acetamide] Slight code style fixes.
[Azoth Acetamide] Don't reconvert message to unicode on console send.

It's already in unicode after all.
[Azoth Acetamide] Don't convert msg to UTF-8 in err handler.

The message is already in UTF-8, the parser converts it itself.
[Azoth Acetamide] Properly recode from unicode on send.