[ci skip] Merge pull request #4986 from ka7/feature/spelling

Spelling fixes in comment blocks and docs
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index f043e0f..fc5abe5 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -238,7 +238,7 @@
 	public $result;
 
 	/**
-	 * XML-RPC Reponse
+	 * XML-RPC Response
 	 *
 	 * @var	array
 	 */