log more info on rollback
log more info on rollback

nimishzynga/cbgt,steveyen/cbft,couchbaselabs/cbgt,steveyen/cbft,couchbaselabs/cbft,couchbaselabs/cbgt,couchbaselabs/cbgt,steveyen/cbft,couchbaselabs/cbft,nimishzynga/cbgt,couchbaselabs/cbft,couchbaselabs/cbgt,steveyen/cbft,nimishzynga/cbgt,steveyen/cbft,nimishzynga/cbgt,couchbaselabs/cbft