Fix AWS::AutoScaling::Instance#healthy?

Fixes #3151
Revert "S3 invalid signature generation"
Merge pull request #3167 from fog/revert-3144-master

Revert "S3 invalid signature generation"
[AWS|DNS] Add  instrumentor
[AWS|CDN] Add instrumentor
[AWS|Beanstalk] Add instrumentor
[AWS|CloudFormation] Add instrumentor
[AWS|DataPipeline] Add instrumentor
[AWS|DynamoDB] Add instrumentor
[AWS|Elasticache] Add instrumentor
[AWS|EMR] Add instrumentor
[AWS|Glacier] Add instrumentor
[AWS|RDS] Add instrumentor
[AWS|Redshift] Add instrumentor
[AWS|SES] Add instrumentor
[AWS|SimpleDB] Add instrumentor
[AWS|SNS] Add instrumentor
[AWS|SQS] Add instrumentor
[AWS|Storage] Add instrumentor
[AWS|STS] Add instrumentor