Services and Targets have no attribute "__name__".
This (6e2cb68) also applies even if the variable is not called "x".
Everything includes "single".
Differentiation between different states of services and targets.
Implemented a method to display the current state of services and targets.
Fixed identation.
Print the names of the services and targets.
Calling a method regularly.
Implemented a check whether targets have dependencies that have not been imported yet.
Implemented a check whether services have dependencies that have not been imported yet.
Added a few docstrings.
Implemented a check whether all dependencies of a target are met.
Implemented a check whether all dependencies of a service are met.
Starting the services that can be started.
There's a new class!
Backport some changes from master.