pom.xml: updates for release 0.9.1
pom.xml: updates for release 0.9.1

Update killbill-plugin-api to 0.8.2
Update killbill-platform to 0.1.0 (prev release was use a wrong platform version)

Signed-off-by: stephane brossier <c1fb28815da1df8a6921017a648d6c4b5d859b78@groupon.com>

aeq/killbill-oss-parent,killbill/killbill-oss-parent,rocketlawyer/killbill-oss-parent,andrenpaes/killbill-oss-parent,kares/killbill-oss-parent,maguero/killbill-oss-parent