Deployfish

ENHANCEMENTS:

* Complete refactoring of the deployfish codebase
* Django like models and managers for all AWS resources
* Jinja2 and python-tabulate for rich output
* Class based views for click commands
* Many other changes
* FEATURE: You can now work with all Services and Tasks in your AWS account, even if they're not listed in your deployfish.yml file
* FEATURE: Service helper tasks can now be scheduled
* FEATURE: Service helper tasks logging now defaults to awslogs when configured for FARGATE
* FEATURE: All standalone tasks (in the top level tasks: section) for a service can now be updated with a single command
* FEATURE: You can now look at task logs in CloudWatch Logs with deployfish
* FEATURE: Describe ALBs, Target Groups
* FEATURE: Describe ELBs
* UPDATE: Service info output now includes details about load balancing setup

BUG FIXES:

* cli: properly handle multiple target groups when describing a service

ENHANCEMENTS:

* service: you can now specify multiple target groups for a service
* service: you can now specify Capacity Provider Strategies for a service
* cli: now helpfully show all services and environments when you give a service/environment name that doesn't exist.

BUG FIXES:

* task: now actually setting security groups properly when using task scheduling

ENHANCEMENTS:

* service/***task-definition: now adding entries from the `config:` section of the task definition to
container secrets. Thus you no longer need to set `deploy entrypoint` as your container's `ENTRYPOINT`
in order to get your `config:` entries out of SSM Parameter Store.

BUG FIXES:

* task/task-definition: now actually setting security groups properly for the task