Add specs for redhad family
Separate ssh command from matchers to helpers/redhat.rb
Support some Debian family OS
Move duplicated specs to shared_examples
Merge branch 'pr1'
Modify Rakefile to run rake spec
Change the order of creating templates
Redhat -> RedHat
Increment version
:serverspec -> :os for convinient to write
Modify sample spec code
Add the description of multi os support