* Add mongo-dev-server package
Only start the MongoDB server if this package
is present in the project.
* Small layout/formatting adjustments; updated README.
* Allow tests using fake-mongod to start (fake) Mongo.
* Adjust test stdout matching to be less sensitive to ordering.
* Add `mongo-dev-server` History.md entry.
* Remove mongo start check since the tested for error prevents mongo startup.
* Remove README traling whitespace.
* Bump mongo package version.
