Checking in changes prior to tagging of version 0.02.

Changelog diff is:

diff --git a/Changes b/Changes
index 6cdc626..a9be6aa 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension Cot

 {{$NEXT}}

+0.02 2013-04-22T12:39:36Z
+
+    - fix document typos.
+    - plugin loader implemented.
+
 0.01 2013-04-22T05:11:27Z

     - original version