* modules/demux/avi/avi.c: fixed a spelling error reported by emulynx
* modules/gui/macosx/intf.?: added a wrapString:toWidth function
* modules/gui/macosx/prefs.?: removed the use of vlc_wraptext, because it
  was ugly. now we use our own, osx method. This fixes tooltips in japanese
  I'm not sure, but i think src/extras/libc.c vlc_wraptext is now unused.