Add sendEmails util

An util used to send emails to participants regarding the game.

Change-Id: Ibe557ad2888497a883f20841817658478ac6ccdf
diff --git a/utils/config.default.php b/utils/config.default.php
new file mode 100644
index 0000000..09bf517
--- /dev/null
+++ b/utils/config.default.php
@@ -0,0 +1,4 @@
+<?php
+// Copy this file to config.php and fill in the details.
+$API_CLIENT = '';
+$API_SECRET = '';