Merge remote-tracking branch 'remotes/jumperchen/next': merged but NO…

…T USED as the same functionality has already been coded in another way: by providing these stacks as additional arguments to the action handler code so they are accessible and editable inside your grammar actions. This approach is 'nicer' in that the extra argument overhead (vs yy.member set overhead) is *removed* when jison recognizes that none of your grammar rules' action code chunks uses one or more of these stacks. In other words: the already exisiting implementation only sets/passes only those stacks which are actually used by userland code.

# Conflicts:
#	lib/jison.js