Added travis.yml
Merge branch 'master' of https://github.com/Myhall/PA165_DeliveryService

Conflicts:
	DeliveryService/src/main/java/cz/muni/fi/pa165/deliveryservice/App.java
	DeliveryService/src/main/java/cz/muni/fi/pa165/deliveryservice/Courier.java
	DeliveryService/src/main/java/cz/muni/fi/pa165/deliveryservice/Customer.java
	DeliveryService/src/main/java/cz/muni/fi/pa165/deliveryservice/Delivery.java
	DeliveryService/src/main/java/cz/muni/fi/pa165/deliveryservice/DeliveryItem.java
	DeliveryService/src/main/java/cz/muni/fi/pa165/deliveryservice/DeliveryStatus.java
travis.yml content. Continuous integration on travis-ci.org should work now.