Add myself to the authors file (#3784)

Ref #3777

docs/AUTHORS.txt

@@ -129,6 +129,7 @@ Stefan Kjartansson <esteban.supreme@gmail.com>
 Steven Skoczen
 Tayfun Sen <tayfun.sen@markafoni.com>
 Thomas Johansson <prencher@prencher.dk>
+Thomas Forbes <tom@tomforb.es>
 Timo Sugliani <timo.sugliani@gmail.com>
 Travis Swicegood <development@domain51.com>
 Vincent Driessen <vincent@datafox.nl>