Signed-off-by: Rene Jochum <rene@jochums.at>

This was causing an error with the php.ng.redis and php.ng.xdebug states.

minor improvements to archlinux php cli.

This comit is in addition to pull request #70. The add-apt-repository command
will only be run when the ppa has not yet been added.

In order to reuse the default structure of this formula
I changed the config a little bit to configure hhvm files.

Signed-off-by: René Jochum <rene@jochums.at>

XML module is already built-in. In any case, `php5-xmlrpc` package actually provides XML-RPC module.

See README.rst for more information

The php extension is mysqlnd, not mysqld