Merge commit '5de7b7ebddba0806f0d5eb772b0e3810914e1104' into jgfouca/…

…branch-for-to-acme-11-10-2017-pr

* commit '5de7b7ebddba0806f0d5eb772b0e3810914e1104': (156 commits)
  partial fix for issue 2048
  USER_REQUESTED_ vars should go in env_batch
  Use_existing needs to set FAIL states back to PEND
  encapsulate routine
  add create_test options to config for user tuned defaults
  Change ACME PIO roots to zero the right way
  If MAIL_TYPE has an underscore, then MAIL_USER should as well
  make config option consistant with cl
  Typo in if-elif construct
  allow create_test to have a different mail_type default
  Add test to make sure successful tests are not re-run by use-existing
  Add support for mail flags to create_test
  convert line to utf-8
  Update ChangeLog
  Big fix.
  Address github feedback
  allow undated history files to be archived
  Change paths to case2 rundir and exeroot
  Allow mail settings to be configured by a users's cime_config
  Improve email handling
  ...