Replaced `==` with `===` and `!=` with `!==` in /system/core
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index c8245fc..182f17a 100755
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -94,7 +94,7 @@
  * Note: Since the config file data is cached it doesn't
  * hurt to load it here.
  */
-	if (isset($assign_to_config['subclass_prefix']) && $assign_to_config['subclass_prefix'] != '')
+	if (isset($assign_to_config['subclass_prefix']) && $assign_to_config['subclass_prefix'] !== '')
 	{
 		get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix']));
 	}
@@ -182,7 +182,7 @@
  * ------------------------------------------------------
  */
 	if ($EXT->call_hook('cache_override') === FALSE
-		&& $OUT->_display_cache($CFG, $URI) == TRUE)
+		&& $OUT->_display_cache($CFG, $URI) === TRUE)
 	{
 		exit;
 	}