Re-adds mongodb default values.
Re-adds mongodb default values.

Grasia/swellrt,apache/incubator-wave,vega113/incubator-wave,vega113/incubator-wave,apache/incubator-wave,apache/incubator-wave,wisebaldone/incubator-wave,vega113/incubator-wave,apache/incubator-wave,wisebaldone/incubator-wave,Grasia/swellrt,P2Pvalue/swellrt,Grasia/swellrt,P2Pvalue/swellrt,apache/incubator-wave,vega113/incubator-wave,wisebaldone/incubator-wave,Grasia/swellrt,wisebaldone/incubator-wave,P2Pvalue/swellrt,wisebaldone/incubator-wave,P2Pvalue/swellrt