updated copyright years and added 3 builds to the allowed failures on travis since there is some bug in the leak sanitizer...
diff --git a/LICENSE.txt b/LICENSE.txt
index 788b351..62cdd94 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,6 +1,6 @@
The MIT License (MIT)
-Copyright (c) 2016-2017 Viktor Kirilov
+Copyright (c) 2016-2018 Viktor Kirilov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal