Bump to PHP 5.5.5
Bump to php54 to 5.4.21
php-code-sniffer: add 1.5.0 RC4 as the devel version (closes #789)
couchbase: update to 1.2.1 (closes #788)

@see http://pecl.php.net/package-info.php?package=couchbase&version=1.2.1
wp-cli: update to 0.12.1 (closes #787)
phpDocumentor: update to 2.1.0 (closes #784)
phpcpd: update phar url

closes #782