New openconfig modules frequently cause "server is unhealthy".

Change 29551 [0] which fixed BGPCEP-306 has passed a system test once [1], but since then it is failing, first sign is this in karaf.log:

2015-11-13 04:35:19,066 | WARN | config-pusher | JavassistUtils | 62 - org.opendaylight.mdsal.binding-generator-impl - 0.8.0.SNAPSHOT | Failed to customize org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.rev151009.bgp.global.base.Config$StreamWriter from prototype org.opendaylight.yangtools.binding.data.codec.gen.impl.DataObjectSerializerPrototype javassist.CannotCompileException: [source error] no such class: org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber at javassist.CtBehavior.setBody(CtBehavior.java:446)

Specific reason is not clear to me. Maybe the new BGP models end up using incorrect revision of ietf-inet-types, or perhaps MDSAL does not expose the newer revision correctly.