Change ShakeException so it has a list of strings for the stack
Change ShakeException so it has a list of strings for the stack

nh2/shake,ndmitchell/shake,ndmitchell/shake,nh2/shake,ndmitchell/shake,ndmitchell/shake,nh2/shake,ndmitchell/shake,nh2/shake,nh2/shake,ndmitchell/shake