Increased version to 0.16.2

Ignore-this: 5ddc2df998ba9e75be4635e5ca632d26

darcs-hash:20100921120934-58252-e29c4d5e6f659c8ee1df480a4c942a66bc060060
Added changelog for 0.16.2

Ignore-this: 96effd2b368c41591dfbbaa3156814c

darcs-hash:20100921123704-58252-2d3eef24cf78bd12abfff5f62af9257bdb4ec604