Handoff

- fix: fix the docker version to 5.0.0

- feature: log pattern filter and json output
- feature: Include STOPPED task in the status list. Full description of schedule (80)
- fix: travis script
- fix: update get-pip.py URL (83)
- fix: Switch tap-exchangeratesapi to tap-exchangeratehost in 04_install test project

- fix: safe char should include period(.) define _line_safe var in foreach (79)

- feature: stop task (75)
- feature: include taskArn in task status response
- fix: exit cleanly on fail and still push aritfacts (77)
- fix: Remove unsupported Python2 from Dockerfile

- fixes Mac OS tutorial issue (incompatible date command signature) (72)

A major release with improved interface and new features.

1. Container orchestration (AWS Elastic Continer Service)
2. Extended serverless task execution (AWS Fargate, vs. AWS Lambda's 15min limit)
3. CRON Scheduling (AWS EventBridge)
4. Configuration and secret management (AWS Systems Manager Parameter Store)
5. Simple switch between production and devlopment stages
6. Docker image management (AWS Elastic Container Registry)
7. Artifacts management (AWS Simple Cloud Storage)
8. Log management (AWS CloudWatch)
9. Shared resource management (Virtual Private Cloud, Security Group)
10. No need to pay and maintain a dedicated virtual instances!