Changelog for amazonka-s3-streaming-0.2.0.0

Changelog - amazonka-s3-streaming

Fixed a potential bug with very large uploads where the chunksize might be too small for the limit of 10,000 chunks per upload (#6).
Change API to allow the user to specify a chunk size for streaming if the user knows more about the data than we do.
Allow the user to specify how many concurrent threads to use for concurrentUpload as as well as chunk size (#4).
Better specify cabal dependency ranges.