Checking in changes prior to tagging of version 2.2.0.

Changelog diff is:

diff --git a/Changes b/Changes
index 68110de..0d6940d 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,9 @@ Revision history for Mouse

 {{$NEXT}}

+2.2.0 2014-04-03T22:34:42Z
+    - Fixed #16 - inconsistent coercion/validation of Bool type (tokuhirom)
+
 2.1.1 2014-03-26T13:23:48Z
     - Fixed #18 (tokuhirom)