Bug 573960 - POM and product version change for 4.21 release

Change-Id: Ib0c0184bec5b35cdd927e699be9fd8e1d06671ce
Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>
Reviewed-on: https://git.eclipse.org/r/c/jdt/eclipse.jdt.debug/+/181384
Tested-by: Vikas Chandra <Vikas.Chandra@in.ibm.com>
Reviewed-by: Vikas Chandra <Vikas.Chandra@in.ibm.com>
7 files changed