EVR-CP: Restart worker threads when resetting the device.

Fixes a crash when switching VSync modes caused by a442540b53b8a040ec0cfd95fce6743922ac386f. But instead of just restarting the VSync thread, all threads are now safely restarted.
Revert "Use ASCII for the English resource file."

This reverts commit 036ce33ea169006ffec04eb521cacab59a687142.

Conflicts:
	docs/Changelog.txt
	src/mpc-hc/mplayerc.rc
Graph builder: Make duplicated filter detection stricter.

This let us blacklist filters more easily.
Blacklist some filters that are known to be incompatible with DVB.

This includes the internal video decoder for now (refs #730).
Cosmetics: add missing brackets and consistently use .0f instead of .f.
Some testing on SetAlwaysOnTop. (not working)
Apply the "Repeat" option after "Play next in the folder". (WIP)

The repeat option will now take effect after the next file in the folder was played (similarly to playlist items).

This commit fixes #978.