gnustep-base/trunk: add suggested dependency
gnustep-base/trunk: fix overrides
gnustep-base/trunk: update to 1.30.0
gnustep-make/trunk: update to 2.9.2
free() even if NULL to keep the static analyzer happy
uupdate project for 10.11
change the conversion code to be executed if needed on BitmapFormat, not unconditioned based on OS version
cleanup and simplify parameteres