Add copyright/license header

src/Mustache/Cache.php

@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2012 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 interface Mustache_Cache
 {
     public function load($key);

src/Mustache/Cache/AbstractCache.php

@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2012 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 abstract class Mustache_Cache_AbstractCache implements Mustache_Cache
 {
     private $logger = null;

src/Mustache/Cache/FilesystemCache.php

@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2012 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 class Mustache_Cache_FilesystemCache extends Mustache_Cache_AbstractCache
 {
     private $baseDir;

src/Mustache/Cache/NoopCache.php

@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2012 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 class Mustache_Cache_NoopCache extends Mustache_Cache_AbstractCache
 {
     public function load($key)

test/Mustache/Test/Cache/FilesystemCacheTest.php

@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of Mustache.php.
+ *
+ * (c) 2012 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 /**
  * @group functional
  */