tracking DQM as independent from strip DQM

w.r.t. https://github.com/cms-sw/cmssw/pull/1315
this update is meant to take everything from it
and patch the problem in compilation
which was due to the asynchronous pull request w.r.t. the helper class GenericTriggerEventFlag

it is still not changing neither the cosmic source nor the cosmic client and certification

now, the code compile ... cross the fingers, please