Improve container options
Reformat to basically obey default rules of ESLint
Improve container management
Reformat
Improve debug messages
Use 6to5
Simplify debug message
Use job ids as container names with static prefix
Use gulp and 6to5
Remove a unnecessary pattern from .gitignore
Improve container management
Add compiled files pattern to .gitignore
Refactor and change hierarchy of runner.config

Separate runner configuration from container configuration
Fixes container to be removed
Improve build system