entitlement: add missing dependencies

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
invoice: adjust dependencies

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
entitlement: remove old comment

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
server: fix pom

The jettyconsole build was broken due to the jar plugin hiding the war
artifact.

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
pom.xml: update to killbill-oss-parent 0.2.4

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>