Multilingual interface support added.

All modifications are behind compileflag INTERNATIONAL,
and affect these two directories; source/blender/src and
source/blender/ftfont.

Thanks to philipp, a new utf8towchar() function is added
to Shizu's work, which fixes the international support for
OSX. It also makes the iconv library obsolete. This means
all translation files (blender.mo) need to be 'recoded' to
UTF-8, and language support in the fileselect window and
the text editor is not possible. Iconv might be added in
the future to enable these features.

source/blender/src/usiblender.c

@@ -52,6 +52,10 @@
 #include "MEM_guardedalloc.h"
 
 #include "BMF_Api.h"
+#ifdef INTERNATIONAL
+#include "FTF_Api.h"
+#include "BIF_language.h"
+#endif
 
 #include "BLI_blenlib.h"
 #include "BLI_arithb.h"
@@ -161,7 +165,7 @@ int BIF_read_homefile(void)
 {
 	char tstr[FILE_MAXDIR+FILE_MAXFILE], scestr[FILE_MAXDIR];
 	char *home= BLI_gethome();
-	int success;
+	int success, result;
 
 	BLI_make_file_string(G.sce, tstr, home, ".B.blend");
 	strcpy(scestr, G.sce);	/* temporal store */
@@ -199,6 +203,32 @@ int BIF_read_homefile(void)
 			U.vrmlflag= USERDEF_VRML_LAYERS;
 		}
 
+#ifdef INTERNATIONAL
+			/* userdef multilanguage options */
+		/*  uncomment with versionchange to 2.27 --phase */
+/*
+		if (G.main->versionfile <= 226) {
+			U.language= 0;
+			U.fontsize= 12;
+			U.encoding= 0;
+			sprintf(U.fontname, ".bfont.ttf");
+			if( FTF_SetFont(".bfont.ttf", 12) ) {
+				FTF_SetLanguage("en");
+				FTF_SetEncoding("ASCII");
+				G.ui_international = TRUE;
+			} else {
+				G.ui_international = FALSE;
+			}
+		}
+*/
+
+		if(U.transopts & TR_ALL)
+			set_ML_interface_font();
+		else
+			G.ui_international = FALSE;
+
+#endif // INTERNATIONAL
+
 		space_set_commmandline_options();
 
 		reset_autosave();
@@ -451,6 +481,10 @@ void BIF_init(void)
 	init_draw_rects();	/* drawobject.c */
 	init_gl_stuff();	/* drawview.c */
 
+#ifdef INTERNATIONAL
+	readMultiLingualFiles();
+#endif
+
 	BIF_read_homefile(); 
 
 	readBlog();
@@ -497,6 +531,9 @@ void exit_usiblender(void)
 	freeNurblist(&editNurb);
 
 	fsmenu_free();
+#ifdef INTERNATIONAL
+	languagesmenu_free();
+#endif	
 	
 	RE_free_render_data();
 	RE_free_filt_mask();