Added should_be_true/should_be_false
Checking in changes prior to tagging of version 0.16.

Changelog diff is:

diff --git a/Changes b/Changes
index b6662a5..4f74748 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension Test-Kantan

 {{$NEXT}}

+0.16 2014-03-06T05:05:53Z
+
+    - Expect#should_be_true, Expect#should_be_false
+
 0.15 2014-03-06T02:48:38Z

     - Added TAP reporter