Changed the data model to accomendate a more real life scenario with
mulitple users.
Merge branch 'dev2.0' of github.com:rhnordics/jdg-labs into dev2.0

Conflicts:
	projects/lab1/src/main/java/com/acme/todo/TaskService.java
	projects/lab1/src/main/resources/import.sql
	projects/lab1/src/test/java/com/acme/todo/TaskServiceTest.java
New Domain model implemented