- marked baselibs.conf in specfile as source in order to make
factory checkin policy happy

- Update to version 0.4.0:
+ Pick-up changes in m4 submodule as it's better to have all util repos at same m4 level.
+ corrected return value documentation for xcb_image_shm_put()
+ added additional format tests for XY_PIXMAP bit planes
+ changed test_xcb_image to work with XY_PIXMAP with nontrivial planemask
+ Fixed get_image to handle xy format with nontrivial plane_mask.
+ added window names to test_xcb_image windows
+ increased window size for test_xcb_image for usability
+ Fixed endianness bug in xy pixmap getimage.
+ fixed some compiler C90 warnings
+ config: add bug URL to AC_INIT
+ config: replace deprecated use of AC_OUTPUT with AC_CONFIG_FILES
+ config: remove old dead code for documentation
+ config: use AC_CONFIG_HEADERS to create a config.h file
+ config: add missing COPYING file
+ make: there should be no attempt to remove any Makefile.in file
+ make: using EXTRA_DIST for xcb-util-image.pc.in is redundant
+ make: image is using X11 Protcol headers, so XPROTO_CFLAGS is required
+ test: move test cases into their own directory
+ image: use AM_CPPFLAGS rather than per-target libxcb_image_la_CPPFLAGS
+ Fix compilation when NDEBUG is defined
+ Check submodules before running autoconf.