Merge pull request #21 from stfnsche/master

[OPENENGSB-3739] fix orientdb and pax-wicket versions
[OPENENGSB-3791] Upgrade jackson libs to 2.4.1
[OPENENGSB-3794] upgraded maven-verifier to 1.5
Merge pull request #23 from mipe/master

[OPENENGSB-3794] upgraded maven-verifier to 1.5
Merge pull request #22 from matthiasseidemann/master

[OPENENGSB-3791] Upgrade jackson libs to 2.4.1
[OPENENGSB-3798] Add wrapped JIRA REST client version to the root
Merge pull request #24 from irentu/master

[OPENENGSB-3798] Add wrapped JIRA REST client version to the root
[OPENENGSB-3794] fixed maven-verifier scope due to checkstyle errors
Merge pull request #25 from mipe/master

[OPENENGSB-3794] fixed maven-verifier scope due to checkstyle errors