Contrib emacs24.3

Well, Emacs seems to be rather flexible. If it does not find required libraries, than it disables those functions that requires those libraries. These functions are X-windows support with GTK+2 >=2.10 or GTK+3 >=3.0. Additionally, some libraries to handle different image formats, like gif, png, etc. If it does not find any library, then only the terminal-only version will be compiled.