44: Fixing s3cmd not found and adding some logging/debug enhancements

[legkvla]

• GPL added
• More verbose logging for s3 upload
• Fixing issue when s3cmd not found through cron
• Adding vim to docker image
• Saving error/default output to separate file for cron
• In case of s3 gzipping added

[NyakudyaA]

Thanks, @legkvla Do not worry about the failing tests as we haven't included the s3 stuff in the tests. I will test the PR and merge