Add required version
Checking in changes prior to tagging of version 0.01.

Changelog diff is:

diff --git a/Changes b/Changes
index d4896c9..894fc31 100644
--- a/Changes
+++ b/Changes
@@ -1,4 +1,4 @@
 Revision history for Algorithm::HyperLogLog

-0.0.1    Tue Mar 12 20:13:45 2013
+0.01    Tue Mar 19 04:00:45 2013
         - Initial release