run unit test with lastest mongodb 2.2 version

Change-Id: I579e5402861d63bd48f9846f757f255fa1dedf9d
[services-ng] commit new mongodb proxy in a big patch

Change-Id: Iac67273c91c97eed3355e0a06cf4d4e504e74478
Merge "[services-ng] commit new mongodb proxy in a big patch"
Merge "run unit test with lastest mongodb 2.2 version"