Add support for next_token to get_all_reservations, and have
get_only_instances use it to fetch all results.
add test that next_token is properly passed from get_all_reservations to
DescribeInstances call
Merge pull request #2189 from catlee/master

Add support for next_token to EC2 get_all_reservations. Fixes #2189.
Merge branch 'release-2.28.0'
Merge branch 'release-2.29.0'
Merge branch 'release-2.29.1'
closes #2304; relocate requirements checks
Merge branch 'release-2.30.0'
Skip the ETag header check in responce while using SSE-C encrpytion of S3
beanstalk module: add backward-compatible support for Python 3.3+
adjust docs to be able to merge with current code
fix unittest import for python 2.6 compatibility
Merge branch 'release-2.31.0'
Added support for creating EMR clusters with a ServiceRole
Add release notes; bump to 2.31.1
Added unit test TestRunJobFlow:test_run_jobflow_service_role
Fixed #1698 and put unit tests on it
swf module: add backward-compatible support for Python 3.3+
cloudwatch module: add backward-compatible support for Python 3.3+
opsworks module: add backward-compatible support for Python 3.3+