Sending a response should not exit the program.

We need to allow events to fire after the stop method is called. This will allow users to clean up resources, perform logging, etc.

flight/net/Response.php

@@ -164,13 +164,11 @@ class Response {
     }
 
     /**
-     * Sends the response and exits the program.
+     * Sends HTTP headers.
+     *
+     * @return object Self reference
      */
-    public function send() {
+    public  function sendHeaders() {
-        if (ob_get_length() > 0) {
-            ob_end_clean();
-        }
-
         if (!headers_sent()) {
             // Send status code header
             if (strpos(php_sapi_name(), 'cgi') !== false) {
@@ -208,7 +206,24 @@ class Response {
             }
         }
 
-        exit($this->body);
+        return $this;
+    }
+
+    /**
+     * Sends a HTTP response.
+     *
+     * @return object Self reference
+     */
+    public function send() {
+        if (ob_get_length() > 0) {
+            ob_end_clean();
+        }
+
+        $this->sendHeaders();
+
+        echo $this->body;
+
+        return $this;
     }
 }