CPPageExternalFilters: fix wrong popup point check

Casting UINT to int and then comparing it to 0 is just wrong
Profile: fix inability to open locked mpc-hc.ini

I previously misjudged c++ semantics pretty badly here
MpaDecFilter: fixed channel layouts for some HDMV LPCM.
update icl13.diff
Updated French translation.
MediaFormats: Add association flag to allow file types to be added without associating them.
MediaFormats: Add non-associable rar filetype.