updates to SmartList FAQ

I made following updates to the SmaertList FAQ at https://www.animalgenome.org/SmartList/FAQ: - 1.3: ... Smartlist version added download site https://github.com/procmail-org/SmartList - 1.4 add http://www.pure.ch/pub/smartlist/old/SmartList-FAQ to "additional documentations" - 3.6 updated Matt Wright's "Formmail" link from the out-of-dated http://www.cgi-resources.com to https://www.scriptarchive.com/formmail.html Obviously there are many parts that need updates, and they are overdue. Suggestions are welcome. -- Zhiliang