Update the README for 0.5 too

And release!

Change-Id: I80182883982dbeac457923ea633ec8e31fb72a7d
diff --git a/README b/README
index 9929f71..31a91b9 100644
--- a/README
+++ b/README
@@ -29,6 +29,10 @@
 100M up to 10G ports. VLANd supports interoperable VLANs across all
 these devices, verified using the Linaro test lab and our test suite.
 
+VLANd also includes a "Dummy" switch driver which can be used for
+testing and validation. Read the comments in drivers/Dummy.py for more
+details on how to use it.
+
 It is expected that more drivers will be included in future
 releases. Please feel free to propose more target devices, or (better)
 send patches!
@@ -119,5 +123,5 @@
 the accompanying COPYING file for more details.
 
 --------------------------------------------------------------------------
-README for VLANd 0.4, 24th September 2015
+README for VLANd 0.5, 24th December 2015
 Steve McIntyre <steve.mcintyre@linaro.org>