Update dates

LICENSE

@@ -6,10 +6,10 @@ Textile's procedural code into a class framework.
 
 Additions and fixes Copyright (c) 2006    Alex Shiels       https://twitter.com/tellyworth
 Additions and fixes Copyright (c) 2010    Stef Dawson       http://stefdawson.com/
-Additions and fixes Copyright (c) 2010-16 Netcarver         https://github.com/netcarver
+Additions and fixes Copyright (c) 2010-17 Netcarver         https://github.com/netcarver
 Additions and fixes Copyright (c) 2011    Jeff Soo          http://ipsedixit.net/
 Additions and fixes Copyright (c) 2012    Robert Wetzlmayr  http://wetzlmayr.com/
-Additions and fixes Copyright (c) 2012-13 Jukka Svahn       http://rahforum.biz/
+Additions and fixes Copyright (c) 2012-18 Jukka Svahn       http://rahforum.biz/
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met: