Added the constant CI_CORE to help differentiate between Core: TRUE and Reactor: FALSE.
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index 2d3f249..1c06488 100644
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -36,6 +36,13 @@
 
 /*
  * ------------------------------------------------------
+ *  Define the CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
+ * ------------------------------------------------------
+ */
+	define('CI_CORE', FALSE);
+
+/*
+ * ------------------------------------------------------
  *  Load the global functions
  * ------------------------------------------------------
  */