Add snapshot commands
Add snapshot commands

Fixed error remains in other versions:
  return [] if e.extra_data[:stdout].include?("does not have")
should be
  return [] if e.extra_data[:stderr].include?("does not have")

Many methods are the same in different version_X, and should be moved to Base class.
kamigerami/vagrant,marxarelli/vagrant,benh57/vagrant,benizi/vagrant,jtopper/vagrant,crashlytics/vagrant,petems/vagrant,taliesins/vagrant,vamegh/vagrant,sni/vagrant,bryson/vagrant,benh57/vagrant,chrisroberts/vagrant,gitebra/vagrant,bryson/vagrant,kamigerami/vagrant,kamazee/vagrant,gitebra/vagrant,gitebra/vagrant,jtopper/vagrant,jtopper/vagrant,benizi/vagrant,krig/vagrant,marxarelli/vagrant,petems/vagrant,chrisroberts/vagrant,lukebakken/vagrant,mitchellh/vagrant,sax/vagrant,kamazee/vagrant,mwrock/vagrant,marxarelli/vagrant,mitchellh/vagrant,carlosefr/vagrant,signed8bit/vagrant,krig/vagrant,bdwyertech/vagrant,kamigerami/vagrant,krig/vagrant,lonniev/vagrant,kamazee/vagrant,signed8bit/vagrant,mitchellh/vagrant,petems/vagrant,PatrickLang/vagrant,justincampbell/vagrant,sni/vagrant,TheBigBear/vagrant,lonniev/vagrant,benizi/vagrant,bryson/vagrant,PatrickLang/vagrant,tomfanning/vagrant,chrisroberts/vagrant,carlosefr/vagrant,lonniev/vagrant,taliesins/vagrant,crashlytics/vagrant,bdwyertech/vagrant,justincampbell/vagrant,tomfanning/vagrant,taliesins/vagrant,chrisroberts/vagrant,benizi/vagrant,bshurts/vagrant,TheBigBear/vagrant,tomfanning/vagrant,justincampbell/vagrant,taliesins/vagrant,vamegh/vagrant,bshurts/vagrant,mwrock/vagrant,vamegh/vagrant,marxarelli/vagrant,jtopper/vagrant,lukebakken/vagrant,crashlytics/vagrant,benh57/vagrant,krig/vagrant,PatrickLang/vagrant,kamigerami/vagrant,sax/vagrant,sax/vagrant,bdwyertech/vagrant,crashlytics/vagrant,lonniev/vagrant,vamegh/vagrant,lukebakken/vagrant,carlosefr/vagrant,justincampbell/vagrant,sni/vagrant,TheBigBear/vagrant,tomfanning/vagrant,signed8bit/vagrant,bshurts/vagrant,gitebra/vagrant,carlosefr/vagrant,TheBigBear/vagrant,kamazee/vagrant,PatrickLang/vagrant,mwrock/vagrant,bshurts/vagrant,sni/vagrant,sax/vagrant,mitchellh/vagrant,mwrock/vagrant,bryson/vagrant,lukebakken/vagrant,bdwyertech/vagrant,benh57/vagrant,signed8bit/vagrant,petems/vagrant