* master: (95 commits)
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upgrade a warning to error
add some logging around create/update requests for IAM user
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Build using `make test` on Travis CI
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provider/aws: Fix error format in Kinesis Firehose
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Changes to Aws Kinesis Firehouse Docs
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modify aws_iam_user_test to correctly check username and path for initial and changed username/path
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Prompt for input variables before context validate
Removing the AWS DBInstance Acceptance Test for withoutEngine as this is now part of the checkInstanceAttributes func
Making engine_version be computed in the db_instance provider
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