Ignore katello.cert for koji
Add support for SSH tunneling

Fixes #22
Merge branch 'master' of git://github.com/pitr-ch/kvizer

* 'master' of git://github.com/pitr-ch/kvizer:
  remove old todo, fixed in VirtualBox
  rename build_jobs collection to ci_jobs
  replace module Shortcuts with Abstract class
  replace Trollop.die with Runner.die to workaround an error in Trollop
  notify on failure
  add notifications to config.template
Hardset admin password (required for nightly katello)
make tunnel option part of ssh command

DRY