Added some docs to CI core files
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
old mode 100644
new mode 100755
index b494490..7b92ddf
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -32,6 +32,12 @@
  *  Define the CodeIgniter Version
  * ------------------------------------------------------
  */
+	/**
+	 * CodeIgniter Version
+	 *
+	 * @var string
+	 *
+	 */
 	define('CI_VERSION', '2.0.2');
 
 /*
@@ -39,6 +45,12 @@
  *  Define the CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
  * ------------------------------------------------------
  */
+	/**
+	 * CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
+	 *
+	 * @var string
+	 *
+	 */
 	define('CI_CORE', FALSE);
 
 /*