Added backend_id to instance and action.
Added default state to instance
Fixed Config for spring support.
Added instance_ssh_keys table.
Added updated_at timestamp to instance and action.
Forgot schema.
Added log level to config.
Use asset_host with fontawesome
Use rails logger with delayed_job
Remove stale last_action_error
Tiny refactor angular module requirements
Fixed ssh keys assignment
Fixed ssh_keys tests
Added action state for instances
Fixed instances action dropdown
Print instance state on index page
Refactor Backend::Base
Refactor Instance and InstanceAction
New action routes
Test new actions style