Move recaptcha and mailchimp integrations to event handlers

event-handlers/Emergence/People/RegistrationRequestHandler/beforeRegister/recaptcha.php

@@ -0,0 +1,9 @@
+<?php
+
+if ($recaptcha = \RemoteSystems\ReCaptcha::getInstance()) {
+    $recaptchaResponse = $recaptcha->verify($_EVENT['requestData']['g-recaptcha-response'], $_SERVER['REMOTE_ADDR']);
+
+    if (!$recaptchaResponse->isSuccess()) {
+        $_EVENT['additionalErrors']['ReCaptcha'] = 'Please prove that you aren\'t a spam robot by completing the reCAPTCHA';
+    }
+}

event-handlers/Emergence/People/RegistrationRequestHandler/registerComplete/mailchimp.php

@@ -0,0 +1,16 @@
+<?php
+
+// add new user to a MailChimp list (see http://forum.laddr.us/t/mailchimp-integration/26)
+#\RemoteSystems\MailChimp::call('lists/subscribe', [
+#    'id' => 'YOUR_LIST_ID_HERE',
+#    'email' => [
+#        'email' => $_EVENT['User']->Email
+#    ],
+#    'merge_vars' => [
+#        'FNAME' => $_EVENT['User']->FirstName,
+#        'LNAME' => $_EVENT['User']->LastName
+#    ],
+#    'double_optin' => false,
+#    'replace_interests' => false,
+#    'send_welcome' => false
+#]);