pom.xml: versions updates

* Update killbill-analytics-plugin to 0.4.0
* Update killbill-commons to 0.2.2
* Introduce Metrics 3.0.1

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
[maven-release-plugin] prepare release killbill-oss-parent-0.4.2
[maven-release-plugin] prepare for next development iteration
pom.xml: update killbill-commons to 0.2.3

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
[maven-release-plugin] prepare release killbill-oss-parent-0.4.3
[maven-release-plugin] prepare for next development iteration
remove test scope for ClockMock -- see comment in pom
Merge branch 'master' of github.com:killbill/killbill-oss-parent
Update NEWS for upcoming release
[maven-release-plugin] prepare release killbill-oss-parent-0.4.4
[maven-release-plugin] prepare for next development iteration
update api
[maven-release-plugin] prepare release killbill-oss-parent-0.4.5
[maven-release-plugin] prepare for next development iteration
Update killbill-api to 0.6.3
[maven-release-plugin] prepare release killbill-oss-parent-0.4.6
[maven-release-plugin] prepare for next development iteration
Update killbill-api
[maven-release-plugin] prepare release killbill-oss-parent-0.4.7
[maven-release-plugin] prepare for next development iteration