Log Message:
Update to libmtp-0.3.1.  Changes:

	* src/libusb-glue.c: some vartype and return flunkies.
	* configure.ac: check for locale.h
	* examples/util.c: set locale to pick up environment.
	* src/libusb-glue.c: some handling of ptp_usb_getdata()
	  when passed in data size was 0xffffffffU, data
	  sent in first transaction was ignored, fix by
	  Rob Woolley.
	* src/ptp-pack.c: sync in from upstream libgphoto2.
	* src/playlist-spl.c: added handling of Samsung's
	  proprietary .spl playlist format.
	* src/playlist-spl.h: dito.
	* src/device-flags.h: new flags for Samsung playlists.
	* src/music-players.h: assign flags.
	* src/libusb-glue.h: convenience macros.
	* src/libmtp.c: integrate Samsung playlists.
	* src/music-players.h: several new devices and flags.