Added Arquillian tests to the project and arquillian config

Resolved Conflicts:
	projects/lab/pom.xml
	projects/lab/src/main/java/org/jboss/infinispan/demo/TaskService.java
Fixed som test setup and switched from Manifest dependencies to
jboss-deployment-structure.xml
Added tasks to test filter
Fixed jboss-deployment-structure to use services="import"