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/include/BIF_toolbox.h

@@ -32,7 +32,7 @@
 
 	/* TBOXX: width in pixels */
 #define TBOXXL  80
-#define TBOXXR  170
+#define TBOXXR  200
 #define TBOXX	(TBOXXL+TBOXXR)
 	/* TBOXEL: amount of element vertically */
 #define TBOXEL	14

source/blender/include/blendef.h

@@ -188,6 +188,7 @@
 #define B_CONSOLETOG		61
 #define B_DRAWINFO			62
 #define B_REDRCURW3D		63
+#define B_FLIPINFOMENU		64
 
 
 #define B_SHOWSPLASH		70
@@ -282,6 +283,7 @@
 #define B_SETFONTSIZE		313
 #define B_SETENCODING		314
 #define B_SETTRANSBUTS		315
+#define B_DOLANGUIFONT		316
 
 /* Definitions for the fileselect buttons in user prefs */
 #define B_FONTDIRFILESEL  	320