travis: use ghc 7.6.3
not sure why the 7.6.3 travis build failed
ListTable and basic PutItem.
Standardize XXXConfiguration for services.  Refactor Ddb common JTypes.
relax cryptohash constraint (finally tested)
Release 0.8.3
http-conduit 2.0 support
Revert "travis: use ghc 7.6.3"

This reverts commit 4400dc142512bfc2f2157aaa1080e6aa5a300640.

Conflicts:
	.travis.yml
Merge pull request #83 from snoyberg/master

http-conduit 2.0 support
Release 0.8.4
Initial DynamoDb support
Move V4 authorization into Aws.Core
DynamoDb: change the memory responses to return the table description directly
Merge pull request #86 from wuzzeb/master

DynamoDb
add Chris Dornan and John lenz to contributors
Australia is a country too
Merge pull request #87 from maxpow4h/patch-1

Australia is a country too
Added SSE to S3

Use by setting S3.poServerSideEncryption = Just "AES256"
Merge pull request #88 from maxpow4h/sse

Added SSE to S3
Added type for ServerSideEncryption