Pure ruby ssh connectivity detection
Merge branch 'master' of git://github.com/pitr-ch/kvizer

* 'master' of git://github.com/pitr-ch/kvizer:
  update documentation
  fix jobs to build RHEL base, update documentation
  fix warn logging on failing cli commands
  after starting a vm, give it time to start fully
  optionaly warn when commad fails in #shell
  add cli command with options to log
  create dir for logs when missing
  fix inmage_builder log message
  better error message when ambiguous vm name
  fix old logger names
  add alias #success? for #success in ShellOutResult
Variable rename
Merge pull request #25 from ares/master

Various fixes