fixes license and attribution issues

AUTHORS

@@ -1,8 +1,9 @@
 # Authors ordered by first contribution.
 # Generated by tools/update-authors.sh
+# and modified to reflect works in the public domain (denoted by ***)
 
-Lew Rossman <LRossman@cinci.rr.com>
-Michael Tryby <tryby.michael@epa.gov>
+Lew Rossman <LRossman@cinci.rr.com> ***
+Michael Tryby <tryby.michael@epa.gov> ***
 Sam Hatchett <samhatchett@gmail.com>
 Feng Shang <fshang>
 James Uber <jim@citilogics.com>
@@ -14,7 +15,8 @@ Mike Kane <muke195@gmail.com>
 Demetrios Eliades <eldemet@gmail.com>
 Will Furnass <will@thearete.co.uk>
 Steffen Macke <sdteffen@sdteffen.de>
-Mariosmsk <mariosmsk@gmail.com>
+Marios Kyriakou <mariosmsk@gmail.com>
 Elad Salomons <selad@optiwater.com>
 Maurizio Cingi <mrzcng2@gmail.com>
 Bryant McDonnell <bemcdonnell@gmail.com>
+Angela Marchi <angela.marchi@adelaide.edu.au>