Log Message:
Update to 0.99.4:

xsane-0.993 -> 0.994:
---------------------

 - corrected postscript bug: moved "/DeviceRGB setcolorspace" and
 "CSA... setcolorspace" from document setup to page setup

 - added black point compensation to printer setup dialog

 - xsane-scan.c: if (channels==1) then scanner_default_gray_icm_profile
 is used instead of scanner_default_color_icm_profile

 - xsane-scan.c: bugfix segfault when scanning: when
 scanner_default_color_icm_profile is not defined then "" is used
 instead of scanner_default_color_icm_profile