Checking in changes prior to tagging of version 0.05.

Changelog diff is:

diff --git a/Changes b/Changes
index e2cffc1..c538366 100644
--- a/Changes
+++ b/Changes
@@ -1,4 +1,6 @@
 Revision history for Algorithm::HyperLogLog
+0.05    Wed Mar 27 23:30:00 2013
+        - Fixed: integer overflow in 32bit environment

 0.04    Sat Mar 23 01:50:00 2013
         - Fixed: unportable tests
Add dependencies on develop phase to cpanfile