Checking in changes prior to tagging of version 0.10.

Changelog diff is:

diff --git a/Changes b/Changes
index c538366..adcc99e 100644
--- a/Changes
+++ b/Changes
@@ -1,4 +1,9 @@
 Revision history for Algorithm::HyperLogLog
+
+0.10    Wed Apr 03 03:15:00 2013
+        - [improvement] register dump/restore feature
+        - [bugfix] hash calculation error in big endian environment
+
 0.05    Wed Mar 27 23:30:00 2013
         - Fixed: integer overflow in 32bit environment