correct behavior of `ldap help`
Checking in changes prior to tagging of version 0.1.3.

Changelog diff is:

diff --git a/Changes b/Changes
index ef44523..bb89ffe 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,8 @@
 Revision history for Perl extension App::LDAP

+0.1.3   Wed Oct  2 14:46:08 CST 2013
+        - correct behavior of `ldap help`
+
 0.1.2   Wed Oct  2 14:21:54 CST 2013
         - more document
Merge branch 'release/0.1.3' into develop