wf 20112 now has a filter step ZEM_DiJetHltFilterDvmcSeq to save 1/2 of the events
in wf 20112  use ZEM_DiJetHltFilterDvmcSeq; add  RECOSKIMSplitdvmc for job splitting
careful job splitting; include FILTER step in MUEG wf 20112. Used for sumission of wfs: https://hypernews.cern.ch/HyperNews/CMS/get/dataopsrequests/5205.html   https://hypernews.cern.ch/HyperNews/CMS/get/dataopsrequests/5206.html