Switch gantry local mode to always require a configuration file
Add better messaging to the gantryd event loop and skip the pull if it is not necessary
Add missing execution bits on the main python files and the shell scripts
- Make command optional and allow it to be pulled directly from the image information
- Add back the user field and thread it into the start command
- Add the ability for the http check to take an optional path argument
- Fix a bug with health checks not getting the proper docker port on subsequent calls
Add requirements.txt and requirements.system for apt-get