GitLab

First implementation of custom runtime, still with parts of functionality disabled which should be enabled again.

Set proper Content-Type for text/plain responses. Limit text for language detection to 1000 characters.

Cleaned up some logging.

Specifiy timeouts for Lambda's

Made the account_id and region configurable and use them in Lambdas and S3 bucket for experiment definitions.

Rmeoved content-type comparison since that is part of header comparison.