Added Command for generate validation dumps
Added ZombieKillerService to abort stuck jobs

The ZombieKillerService uses its own thread to periodically check that the job is making progress. If a sufficient time has passed with no progress the job will be terminated.
Use ZombieKillerService when running multi-threaded

To avoid having the _THREADED IB RelVals get stuck for forever we now use the ZombieKillerService
Merge pull request #2981 from Dr15Jones/zombieKillerService

Multithreading -- Zombie killer service
Merge pull request #2958 from ggovi/new-conddb-validation

CondCore -- Fix for root de-serialization with streamer info
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X