to get a list of possible resource directories for skins2.
   On linux the path is "~/.vlc/skins2:VLC_INSTALL_DIR/share/skins2"
   and on win32 it is "VLC_PATH\skins2'
  * src/skin_main.cpp: use the getResourceDir() method instead of #ifdef
  * parser/builder.cpp: the default font is looked up in the resource dir,
   so you can put fonts in ~/.vlc/skins2/fonts and avoid a make install