Various style cleanups.

* a bunch of small changes, courtesy of styleci
 * update dates in file headers
 * add file headers to files that are missing them

test/Mustache/Test/SpecTestCase.php

@@ -3,12 +3,13 @@
 /*
  * This file is part of Mustache.php.
  *
- * (c) 2010-2015 Justin Hileman
+ * (c) 2010-2016 Justin Hileman
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
  */
 
+
 abstract class Mustache_Test_SpecTestCase extends PHPUnit_Framework_TestCase
 {
     protected static $mustache;