v7.1.0

* Add option to install Memcached Server
* Add memcached pecl extensions into PHP
* Remove "ENABLED" from OPTIONS
* APC is now installed via PECL repository
* The update_apc script is removed (in favour of `pecl upgrade`)
* Suhosin is now removed completely
* Updated init scripts for NginX and PHP

Signed-off-by: Vlad <vg@vladgh.com>