v 1.4.0

- Updated local libraries
- PHP 7.1 support
- New, proper caching method
- Special cache folder

lib/phpfastcache/bin/legacy/Psr/Cache/src/InvalidArgumentException.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * Exception interface for invalid cache arguments.
+ *
+ * Any time an invalid argument is passed into a method it must throw an
+ * exception class which implements Psr\Cache\InvalidArgumentException.
+ */
+interface InvalidArgumentException extends CacheException
+{
+}