implement `be_monitored_by("god")` matcher
Add specs
remove duplicated command spec.
don't look stdout
fix specs
remove `check_monitored_by_god` method in backend/exec.rb
fix service type
add presence check of `monitor`
Merge remote-tracking branch 'pr/208/head'
Merge branch 'master' of github.com:serverspec/serverspec
Bump up version