sabu36

Results 2 issues of sabu36

Suggested in #3 I took the liberty of renaming `sforce` (for string) into `strforce` even though you didn't affirm it. By the way, it's interesting that in binding-block you indent...

On **clisp**, overloading for sets seems to be conflicting with the built-in one for lists. (I'm a noob so I could be missing something elementary.) ``` > (intersection '(a b...