MAGETWO-33040: Deployment tool treats documentation as public assets and fails on minification attempt

- Add 'pcre.recursion_limit' to list of HHVM-compatible int_set() directives according to http://docs.hhvm.com/manual/en/pcre.configuration.php

Author: vkholoshenko

dev/tests/static/testsuite/Magento/Test/Integrity/HhvmCompatibilityTest.php

@@ -36,6 +36,7 @@ class HhvmCompatibilityTest extends \PHPUnit_Framework_TestCase
         'mime_magic.magicfile',
         'display_errors',
         'default_socket_timeout',
+        'pcre.recursion_limit',
     ];
 
     public function testAllowedIniGetSetDirectives()