Increment version

Author: Ciarán O'Mara

Project.toml

@@ -1,7 +1,7 @@
 name = "XAM"
 uuid = "d759349c-bcba-11e9-07c2-5b90f8f05f7c"
 authors = ["Kenta Sato <bicycle1885@gmail.com>", "Ben J. Ward <ward9250@gmail.com>", "Ciarán O'Mara <Ciaran.OMara@utas.edu.au>"]
-version = "0.4.0"
+version = "0.4.1"
 
 [deps]
 Automa = "67c07d97-cdcb-5c2c-af73-a7f9c32a568b"