isnumeric: return false if argument is not a list. Implemented count/1 that returns the number of elements in a list.
isnumeric: return false if argument is not a list.
Implemented count/1 that returns the number of elements in a list.


git-svn-id: 3f662d0c7823f96a484d6a9a7c90f2d7866b6747@223 e454d3dc-12ff-0310-9b8b-94264392205f

bernardd/yxa,bernardd/yxa,bernardd/yxa,bernardd/yxa