Extract some logic from Lita::Adapters::Shell#run.
Extract some logic from Lita::Adapters::Shell#run.

mcgain/lita,jaisonerick/lita,liamdawson/lita,brodock/lita,tristaneuan/lita,liamdawson/lita,chriswoodrich/lita,litaio/lita,natesholland/lita,brodock/lita,prsimp/lita,litaio/lita,jimmycuadra/lita,natesholland/lita,elia/lita,byroot/lita,mcgain/lita,crimsonknave/lita,PatrickTulskie/lita,crimsonknave/lita,byroot/lita,tristaneuan/lita,sadiqmmm/lita,sadiqmmm/lita,jimmycuadra/lita,MatthewKrey/lita,jaisonerick/lita,MatthewKrey/lita,elia/lita,chriswoodrich/lita