[ci skip] Merge pull request #5376 from jim-parry/copyright-update

Annual copyright update

Conflicts resolved:
	system/libraries/Cache/drivers/Cache_apcu.php
diff --git a/license.txt b/license.txt
index 934e126..dcac585 100644
--- a/license.txt
+++ b/license.txt
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014 - 2017, British Columbia Institute of Technology
+Copyright (c) 2014 - 2018, British Columbia Institute of Technology
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal