Download Tal Hershkovich's setup file for Rigify and animate your quadrupeds! (I had no idea you could store presets for Rigify like this - nice find, Tal!)
Anyone who is in a need for a quadruped rig, can download this Metarig, and then launch and generate it using rigify.
Follow the link from my BlenderArtists thread and download the script into "\scripts\addons\rigify\metarigs" Inside your blender folder.
Thank you, thank you thank you! I don't know why this hasn't been included years ago , and it was such a pain to create a quick pose for a quad model