Clean up and add missing translations to installer. I wasted way to much time (again) seeing if I could automate the language installation (and failed) (again).
# Makefile.mingw
#
# Description: Makefile to generate mo files
#
GF_TOP:=..
-include $(GF_TOP)/local.mak
PIDGIN_TREE_TOP?=../../../..
include $(PIDGIN_TREE_TOP)/libpurple/win32/global.mak