automatically support all DQMStore book* calls in the IBooker
FastTimerService: check the ModuleCallingContext state in the pre/postModuleEventDelayedGet to decide whether or not to pause/resume the dependent module's timer
FastTimerService: migrate to the thread-safe interface of the DQMStore
Merge pull request #1 from fwyzard/FastTimerService_part3

FastTimerService, part 3