update manual link
Skip the normalization of the file names on Linux.
There seems to be a problem with equivalent file names on Linux, so show files as missing that other software will not find.
Looks like only Macs do NFD normalization of file names.
So don't work around non-existing problems on Windows.
get rid of another *
Merge remote-tracking branch 'dae/master' into flake

Conflicts:
	anki/consts.py
Merge remote-tracking branch 'ospalh/no-normalize-mediacheck' into flake