put Sdlloader.load_image inside a blocking_section (suggested by David Baelde)
put Sdlloader.load_image inside a blocking_section (suggested by David Baelde)

fccm/OCamlSDL1,fccm/OCamlSDL1,fccm/OCamlSDL1,fccm/OCamlSDL1,ocamlsdl/OCamlSDL,ocamlsdl/OCamlSDL,ocamlsdl/OCamlSDL