add perl and python download methods
add perl and python download methods

juliandunn/opscode-omnitruck,chef/omnitruck,glennmatthews/opscode-omnitruck,glennmatthews/opscode-omnitruck,glennmatthews/opscode-omnitruck,chef/omnitruck,rhass/opscode-omnitruck,rhass/opscode-omnitruck,chef/opscode-omnitruck,juliandunn/opscode-omnitruck,juliandunn/opscode-omnitruck,rhass/opscode-omnitruck,chef/opscode-omnitruck,chef/omnitruck,chef/opscode-omnitruck