patch for taulifetime and multi-threading
In DQMFileSaver, do not set umask, even when testing.
In DQMStore, save files encoded with ProtocolBuffer by explicitly setting permissions to 0664.
In fastHadd, set file permissions to 0664 for files merged and encoded with ProtocolBuffer.
Merge pull request #4835 from inugent/TauolaLifetimePatch_7_1_X

patch for taulifetime and multi-threading
Merge pull request #4881 from diguida/fix_PB_file_permissions_v2

Fix file creations and permissions for DQM histograms encoded with ProtocolBuffer: second round
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X