Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/plugins/wp-mail-smtp/src/ConnectionsManager.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace WPMailSMTP;
+
+/**
+ * Class ConnectionsManager.
+ *
+ * @since 3.7.0
+ */
+class ConnectionsManager {
+
+	/**
+	 * Primary connection object.
+	 *
+	 * @since 3.7.0
+	 *
+	 * @var ConnectionInterface
+	 */
+	private $primary_connection = null;
+
+	/**
+	 * Get the connection object that should be used for email sending.
+	 *
+	 * @since 3.7.0
+	 *
+	 * @return ConnectionInterface
+	 */
+	public function get_mail_connection() {
+
+		return $this->get_primary_connection();
+	}
+
+	/**
+	 * Get the primary connection object.
+	 *
+	 * @since 3.7.0
+	 *
+	 * @return ConnectionInterface
+	 */
+	public function get_primary_connection() {
+
+		if ( is_null( $this->primary_connection ) ) {
+			$this->primary_connection = new Connection();
+		}
+
+		return $this->primary_connection;
+	}
+}