improve detection of equal and deepEqual assertions when generating improved error messages
improve detection of equal and deepEqual assertions when generating improved error messages

robert-berg/rjberg-nodeunit,zuazo-forks/nodeunit,hildjj/nodeunit,ExtPoint/extnodeunit,caolan/nodeunit,sethmcl/nodeunit,isaacs/nodeunit,hildjj/nodeunit,ExtPoint/extnodeunit,caolan/nodeunit,1602/nodeunit,sethmcl/nodeunit,BuZZ-dEE/nodeunit,BuZZ-dEE/nodeunit