Because of the using blocks, these one line methods need the async
modifier so that the that async state machiner is created. Otherwise, if
the method does not complete synchronously, the connection is closed
before the database has returned its results.

The methods that return collections should return
Task<IEnumerable<dynamic>> not Task<dynamic>

Instead to register EventHandlers we register Func<EventHandlers> which solves scope problems (having transient/scoped objects owned by singletons)

Revert "Fix API signatures for collections"

Fix API signatures for collections

The methods that return collections should return
Task<IEnumerable<dynamic>> not Task<dynamic>

Unit tests

Cleaning up and fixing typos

Redis and rabbitmq images now are not created when executing built. We force to  pull them  from docker hub.

Upgrade to angular-cli and Angular 4

Fixed some minor typos