MX record + patch

[lordspace]

Hi,

I've used your sdk. Thanks for organizing everything.

here's a fix for mx records.
https://github.com/speedster-kiev/namecheap-php-sdk/blob/master/src/Namecheap/Command/Domains/Dns/SetHosts.php

/**
         * Overload parent method to handle custom parameters
         */
        protected function _prepareParameters()
        {
            parent::_prepareParameters();

            $i = 1;
            foreach ($this->_hosts as $host)
            {
                // They've added 'EmailType' parameter which is supposed to fix custom MX servers.
                // 'EmailType' => 'MX',
                $params = array(
                    'HostName' . $i     => $host->host,
                    'RecordType' . $i   => $host->type,
                    'Address' . $i      => $host->data,
                    'MXPref' . $i       => $host->mxPref,
                    'TTL' . $i          => $host->ttl,
                );

                if ( strtoupper( $host->type ) == 'MX' ) {
                    // NC support suggested this.
                    $params['EmailType'] = 'MX';

                    // Let's keep this for consistency.
                    $params['EmailType' . $i] = 'MX';
                }

                $this->setParams($params);
                $i += 1;
            }

[speedster-kiev]

Hi, could you please make a pull request for this fix?