qrp

Pull request #840: DEV-37401: ms_envelope efficiency updates

Merge in AD/qrp from DEV-37401 to staging

* commit 'b61042c6c0bc6da0d9a31c5d2393a370e95196ba':
  DEV-37401: Restriced IP episodes creation to run_envelope=0
  DEV-37401: Updated macro call in ms_treeextraction
  DEV-37401: Fixed typo
  DEV-37401: Updated macro call in combo
  DEV-37401: Drop encounterid
  DEV-37401: Updated ms_envelope macro call
  DEV-37401: Implemented hash table
  DEV-37401: Collapsed IP encounters into episodes
  DEV-37401: Made left censor date a macro parameter
  DEV-37401: Added left censor date criterion