Credentials returned after registering an app are hard coded, which causes problems if RabbitMQ is not hosted on localhost
<!--- Provide a general summary of the issue in the Title above -->
## Description
<!--- Provide a more detailed introduction to the issue itself, and why you consider it to be a bug -->
The method controller/app/Service.go/createNewApp always returns "amqp://guest:guest@127.0.0.1:5672" as credentials for an App registering to the Event System. This needs to be fixed.
## Expected Behavior
<!--- Tell us what should happen -->
Method returns correct crededentials dynamically.
## Actual Behavior
<!--- Tell us what happens instead -->
Hard coded string that worked until it didn't :shrug:
## Possible Fix
Use data read from the config file and stored in global vars in config package, e.g. config.AMQPHost.
issue