Checking in changes prior to tagging of version 0.02.

Changelog diff is:

diff --git a/Changes b/Changes
index 2d809a8..7c5497d 100644
--- a/Changes
+++ b/Changes
@@ -1,4 +1,7 @@
 Revision history for Perl extension Plack::Middleware::UnicodePictogramFallback::TypeCast

+0.02    Thu Feb 21 03:05:00 2013
+    - add fallback option (default fallback to '〓')
+
 0.01    Wed Feb 20 19:26:00 2013
     - original version