Support non-asynchronous method.
Add some doc
Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index bd0bd50..4c37deb 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension Yancha-Bot2

 {{$NEXT}}

+0.04 2013-11-10T10:39:29Z
+
+    - Support non-asynchronous post
+
 0.03 2013-11-10T07:05:41Z

     - original version