Bug 530671 Updated pom.xml for release 2.3.0

Updated versions in feature.xml and category.xml files.
Change the version identifier to 2.3.0.RELEASE for the tools-update site
so that eclipse update will recognize the update from 2.3.0.M3.
We have settled on using release version 2.3.0.
Going forward we will use repositories:
edge: for merged builds
milestone: for milestone builds, e.g., 2.4.0.M2
stable: for release builds, e.g., 2.3.0
Eclipse users using any of these repositories would expect eclipse
update to work when there are new releases to those repositories.
If the user changes their update site, then they might expect to
have to do uninstall and reinstall of Lyo tools.

Change-Id: I414d3f298ffe84e1d128a3a2d5b66243456f570b
Signed-off-by: Jim Amsden <jamsden@us.ibm.com>
24 files changed