Megatest

  -var varName            : for config and runconfig lookup value for sectionName varName
  -since N                : get list of runs changed since time N (Unix seconds)
  -fields fieldspec       : fields to include in json dump; runs:id,runame+tests:testname+steps
  -sort fieldname         : in -list-runs sort tests by this field

Misc 
  -start-dir path         : switch to this directory before running megatest
  -contour cname          : add a level of hierarcy to the linktree and run paths
  -rebuild-db             : bring the database schema up to date
  -cleanup-db             : remove any orphan records, vacuum the db
  -import-megatest.db     : migrate a database from v1.55 series to v1.60 series
  -sync-to-megatest.db    : migrate data back to megatest.db
  -use-db-cache           : use cached access to db to reduce load
  -update-meta            : update the tests metadata for all tests
  -setvars VAR1=val1,VAR2=val2 : Add environment variables to a run NB// these are

			":variable"
			":value"
			":expected"
			":tol"
			":units"
			;; misc
			"-start-dir"
			"-contour"
			"-server"
			"-stop-server"
			"-transport"
			"-kill-server"
			"-port"
			"-extract-ods"
			"-pathmod"