what could possibly be wrong with mongojs ?

```
./angular-phonecat-mongodb-rest/node_modules/mongojs/node_modules/mongodb/lib/mongodb/connection/base.js:245
        throw message;
              ^
TypeError: undefined is not a function
    at commandHandler (/home/node/angular-phonecat-mongodb-rest/node_modules/mongojs/node_modules/mongodb/lib/mongodb/cursor.js:709:16)
```
