Initial work on an Engine launcher
Merge branch 'snapshot' of github.com:mcaprari/botto into snapshot

Conflicts:
	botto-service/src/main/java/botto/xmpp/connectors/smack/SmackConnector.java
	botto-service/src/main/java/botto/xmpp/engine/ConnectionManager.java
	botto-service/src/main/java/botto/xmpp/engine/ExampleEngineMain.java