send process variable wrapped in map, to support send-receive round trip
adapted tests to message body containing a hash map of process variables
fixed typo in task name
conditionally enable CDI integration tests

Start JBoss and run Maven with -DskipITs=false
Merge pull request #6 from hwellmann/master

Enable send-receive round trip
Merge pull request #6 from hwellmann/master and adapt it to refactored code
Bump version down back to 0.1-SNAPSHOT
Update README