Bug 577442 - POM and product version change for 4.23 release

Change-Id: Iafdab184aa8c580142b49ade671225e778135829
Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>
Reviewed-on: https://git.eclipse.org/r/c/equinox/rt.equinox.p2/+/188131
63 files changed