updated Ukrainian translation by Arestarh
MpegSplitter: cosmetics
Updated German translation.
Updated Catalan translation.

Refs: #2408.
MatroskaSplitter: Add support for ALAC

This is backport from MPC-BE r2235
Update Checker: Add MPC-HC version in the user-agent.
Some testing on SetAlwaysOnTop. (not working)
External filters page: Show the path of the filter using tooltips.