Added process.exit() after each error. Turned console logging into proper logfile logging.
shutting up jslint...
Merge pull request #867 from NicoleRauch/master

attempt to get wiki notifications to run more reliably.
Removed istanbul-check-coverage because it is not required (yet).
That was doing a bit too much regarding logging...
Oops, killed mail-sending when there were no changes.
Added proper logging  to mailimport.
importMails can access the parser itself, no need to pass it as an argument.
Minor improvements to logging