Checking in changes prior to tagging of version 2.00.

Changelog diff is:

diff --git a/Changes b/Changes
index e692629..6c8d4d6 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,8 @@ Revision history for Perl extension Test::TCP

 {{$NEXT}}

+2.00 2013-06-11T04:41:43Z
+
     [INCOMPATIBLE CHANGES]
     - Change wait_port() API to take max_wait seconds, and wait exponentially.
       Dropped wait_port_retry argument introduced at 1.27.