Downgrade rainbarf to recommends

I don't need rainbarf on remote dev instances.
Add Text::Markdown

I do editing in Markdown a lot from now on...
Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index fd8dfb3..b2586e0 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension Task-BeLike-ZAKAME

 {{$NEXT}}

+0.04 2013-12-02T07:49:53Z
+
+    - Downgrade App::rainbarf to install via cpanm --with-recommends
+    - Add Text::Markdown
+
 0.03 2013-10-17T10:31:51Z

     - Add App::Nopaste for my pastebin needs