branch bindings


git-svn-id: https://svn.code.sf.net/p/gphoto/code/branches/libgphoto2-2_4/bindings/libgphoto2-sharp@10483 67ed7778-7388-44ab-90cf-0a291f65f57c
point to branched m4


git-svn-id: https://svn.code.sf.net/p/gphoto/code/branches/libgphoto2-2_4/bindings/libgphoto2-sharp@10491 67ed7778-7388-44ab-90cf-0a291f65f57c