started mongodb engine
Add find function.
Add filter method
Fix request to account for cursor chaining API
Add mongodb test engine.
Add Mongodb.prototype.load, remove Mongodb.prototype.sync
Fix resourceful/engines/mongodb tests
Fixed setup bug with multiple asynchronous calls.
[test] changed mongodb tests to use localhost
Update package.json
Merge pull request #1 from real-chocopanda/mongodb-support-2

Mongodb support 2