Committer: System User <cassianokc@lab3-03.grad.icmc.usp.br>
 On branch master
 Changes to be committed:
	modified:   hmap.h Fixed documentation.
	new file:   llist.c Implemented a circular linked list data structure.
	new file:   llist.h Added headers for the llist data structure.
	modified:   makefile Added make rules for llist.
	modified:   squeue.h Fixed documentation.
	modified:   sstack.h Fixed documentation.