Implement config.properties archaius

[aspyker]

The samples we followed suggested that we needed to use -D parameters for bootstrapping. As learned by @bondj there is a special file that can be used instead:

https://github.com/aspyker/acmeair-netflix/blob/mock-datatier/acmeair-auth-service/src/main/resources/config.properties
https://github.com/aspyker/acmeair-netflix/blob/mock-datatier/acmeair-webapp/src/main/resources/config.properties

This would remove the need to specify this in server.xml (WLP) and JAVA_OPTS (TC7).