BZ 1112884 -  Desginer does not allow to use a variable for called element in CallActivity
- removed typo in pom.xml (rebase/diff leftover)
- adding isAscending option to QueryFilter
BPMSPL-70 - EJB interface for BPM execution server

- refactoring of services structure and api definition, separated cdi code into separate module so services themselves are framework independent

- ejb implementation and test cases for jboss arquillian mode - local ejb only

- remote ejb implementation and test cases
BPMSPL-70 - added dedicated exceptions to indicate missing deployment, process instance, task, work item, added new modules to jbpm distribution