NEW for #64565
Add CURL_WRAPPERS_ENABLE constant

see http://news.php.net/php.internals/66871
Merge branch 'PHP-5.4' of git.php.net:php-src into PHP-5.4
Use new constant replace ugly trick
Merge branch 'PHP-5.4' into PHP-5.5

Conflicts:
	ext/curl/interface.c