Final changes for 2.1 release.

- remove SNAPSHOT from pom.xml files
- fix p2.inf files to point to update site

Change-Id: Ib5bd3720a77102f9e0f6aaed3bc140aef1dbdc8b
Reviewed-on: https://git.eclipse.org/r/16487
Tested-by: Hudson CI
Reviewed-by: Jeff Johnston <jjohnstn@redhat.com>
IP-Clean: Jeff Johnston <jjohnstn@redhat.com>
Tested-by: Jeff Johnston <jjohnstn@redhat.com>
198 files changed