Don't enable Filters... button for non-FFmpeg sources.
Fix fuzzy de_DE translation.
Update OS X hack scripts.
Fix i18n of strings from src/lib/po on OS X.  There were two bugs;
firstly, the path to the .mo files was wrong (the code assumed that
OSX was like Linux).  Secondly, the string passed into putenv() must
not be freed by the caller (as its docs say).  It appears that you
get away with not doing this on Linux and Windows.
Supporter.
Stop CPL <Creator> tag being configurable and use DCP-o-matic version number instead.
Merge master.