Actions CLI - tracer implementation

Just connects the command line 'actions' and 'do' to the apiserver; basic initial CLI implementation
So, the following isn't really directed at you personally, but I would be pleased if you would bear the following in mind.

OK, I think I know what's squicking me out -- do we *really really* want to perpetuate the funky remote-object-style API client access? We're going to the effort of writing nice APIs -- and this is fundamentally greenfield code -- so how about just using the APIs more directly, ie without obfuscating them behind a layer of nonsense-objects that make bulk calls impossible? This stuff is tailor-made for actually taking advantage of bulk results, I think.