Update changelog with BITCOUNT change

This was forgotten in cbbf11a.

Change-Id: Id4ac6f1833ce57d1dd5d8a41dfc0321df7d32e74
Reviewed-on: http://gerrit.causes.com/37006
Reviewed-by: Shane da Silva <shane@causes.com>
Tested-by: Shane da Silva <shane@causes.com>
Cut version 0.12.0

Change-Id: I232b4d318b86dfb0c70689ac90d239430de1498a
Reviewed-on: http://gerrit.causes.com/37007
Reviewed-by: Shane da Silva <shane@causes.com>
Tested-by: Shane da Silva <shane@causes.com>