added tests for optional binding paramter to CommandProcessor#valid_command?
added tests for optional binding paramter to CommandProcessor#valid_command?

ooohiroyukiooo/pry,geoffreylitt/pry,jasnow/pry,jasnow/pry,icebreaker/pry,richo/pry,pvdb/pry,bronzdoc/pry,caporta/pry,gfvcastro/pry,sideci-sample/sideci-sample-pry,jasonm23/pry,tdg5/pry,josue804/debunker,ngpestelos/pry,caporta/pry,raeno/pry,ooohiroyukiooo/pry,nju520/pry,raeno/pry,sferik/pry,caporta/pry,shockone/pry,gfvcastro/pry,85x14/pry,jasonm23/pry,shockone/pry,scalixte-mdsol/pry,85x14/pry,jasnow/pry,sferik/pry,pvdb/pry,deivid-rodriguez/pry,icebreaker/pry,printercu/pry,ooohiroyukiooo/pry,jasonm23/pry,geoffreylitt/pry,nju520/pry,scalixte-mdsol/pry,bronzdoc/pry,scalixte-mdsol/pry,nju520/pry,ngpestelos/pry,tdg5/pry,tdg5/pry,printercu/pry,raeno/pry,shockone/pry,josue804/debunker,85x14/pry