Diirt 2014-05 release integration

2014-05 integration include:
* epics-util 0.3.1 - http://util.diirt.org/changes-report.html#a0.3.1
* graphene 0.7.0 - http://graphene.diirt.org/changes-report.html#a0.7.0
* pvmanager 2.6 - http://pvmanager.diirt.org/changes-report.html#a2.6

I am merging on 3.3.x as I cannot test with the new build. Not that there are changes to csstudio plugins as well (BOY, activators, graphene, ...), so it's not just a matter to get the latest jars from maven.

Will need to re-integrate at some point.