Bug 575782 - POM and product version change for 4.22 release

Change-Id: I4093b3079eacca6dd013579f1880a17fbccf2d87
Signed-off-by: Kit Lo <kitlo@us.ibm.com>
Reviewed-on: https://git.eclipse.org/r/c/equinox/rt.equinox.framework/+/185021
Tested-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>
Reviewed-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com>
17 files changed