try to use jasmine-node 2.0.0
Revert "try to use jasmine-node 2.0.0"

This reverts commit f6ea0ca91a9fe4cdcd75dc60892fdc697e80d0bb.
Upgrade to mongodb 2.0.4. Stop guessing the replicaset name from the mongodb
URI (as 2.0.4 contains a fix which makes this stopgap measure mute)