Fix for bug #5746

The fix extends the regexp to recognize unordered lists by '-':
[\u2022\u00b7\u00a7\u00d8o\u25CF] => [\u2022\u00b7\u00a7\u00d8o\u25CF\-]

Sorry for the huge diff, but the gitshell on windows seems to change the encoding on commit :(