Checking in changes prior to tagging of version 0.56.

Changelog diff is:

diff --git a/Changes b/Changes
index 6e62d9b..e9abbab 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl module WWW::YouTube::Download

 {{$NEXT}}

+0.56 2013-07-30T07:14:40Z
+    - Fixed typo: $Carp::Intrenal -> $Carp::Internal (Syaltut++)
+    - Changes file reformatted as per CPAN::Changes::Spec (neilbowers++)
+
 0.55 2013-07-27T09:21:38Z
     - Changed signature encoding (kucharskim++)