Add 'xz' compression format. fixes #39
Merge pull request #41 from fluent/add-xz-format

Add 'xz' compression format. fixes #39
relax aws-sdk requirement
Merge pull request #42 from miyagawa/master

Relax aws-sdk requirement in gemspec
Support aws-sdk 1.9 or later
v0.3.7
Add format_json option to README
.travis-ci: use 2.1 to support Ruby 2.1 series
Add mixin options to README
Add configuration example of include_time_key / time_key
Add IAM policy example to README
Merge pull request #46 from fluent/iam_example

Add IAM policy example to README