Made it so if there's release/datafiles/locale/po
folder, then all the .po files will be converted
to .mo at blender compile time and installed to
an appropriate location.
Uses small own implementation msgfmt which is
based on msgfmt.py from Python project, but also
supports contexts.
There's no functional changes for until we've
switched to use source .po files instead of
pre-compiled .mo.
P.S. Well, there's one change which is msgfmt.cc
being compiled even if it's not used, but
would rather not clutter code with checks
since pretty soon we'll use this program
anyway.
This commit adds a small and simplistic C wrapper around boost's locale library as intern/locale, and heavily simplifies/reduces Blender's own i18n code (under blenfont/ dir). And it adds back UI translation on windows' official builds (with msvc)!
Note to platform maintainers: iconv and gettext (libintl) can now be removed from precompiled libs (not gettext binaries, under windows, of course ;) ).
Note to MinGW32/64 users: boost_locale lib has not yet been uploaded for those build env, please disable WITH_INTERNATIONAL for now (hopefully will be fixed very soon, have contacted psy-fy).
