Upgraded node from v0.8.18 to v0.8.20, node modules mongodb from v1.2.11 to v1.2.12, and MongoDB from v2.2.2 to v2.2.3
Upgraded node from v0.8.18 to v0.8.20, node modules mongodb from v1.2.11 to v1.2.12, and MongoDB from v2.2.2 to v2.2.3

HongjianLi/istar,HongjianLi/istar,quinonez/istar,quinonez/istar,HongjianLi/istar,HongjianLi/istar,quinonez/istar,quinonez/istar