Checking in changes prior to tagging of version 1.19.

Changelog diff is:

diff --git a/Changes b/Changes
index 9292472..17b33c3 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,10 @@
 Revision history for Perl extension Test::TCP

+1.19 2013-02-27T14:02:13
+
+    - Split empty_port() function to Net::EmptyPort
+      (Thomas Klausner)
+
 1.18

     - Added more documentation about empty_port()