Adding output buffering to allow redirects to work after content has been outputted.

Signed-off-by: Ben Corlett <bencorlett@me.com>

laravel/core.php

@@ -17,6 +17,20 @@ define('BLADE_EXT', '.blade.php');
 define('DEFAULT_BUNDLE', 'application');
 define('MB_STRING', (int) function_exists('mb_get_info'));
 
+/*
+|--------------------------------------------------------------------------
+| Start Output Buffering
+|--------------------------------------------------------------------------
+|
+| Output buffering allows us to capture all output at any time, so that we
+| can discard it or treat it accordingly. An example of this is if you have
+| echoed a string, but want to return a Redirect object. Because Symphony
+| only checks if headers have been sent, your redirect just silently fails.
+|
+*/
+
+ob_start();
+
 /*
 |--------------------------------------------------------------------------
 | Require Core Classes