api snapshot
Update killbill-plugin-api version
Merge branch 'master' into entitlement
Also update pom to latest version and document it in NEWS

Conflicts:
	pom.xml
Remove snapshot versions from dependencies to prepare for release
[maven-release-plugin] prepare release killbill-oss-parent-0.4.0
[maven-release-plugin] prepare for next development iteration
Use snaphost of api for debugging/testing
Minor API chnages for entitlement after code review
[maven-release-plugin] prepare release killbill-oss-parent-0.4.1
[maven-release-plugin] prepare for next development iteration