Resolve:
- no-else-return
- useless-object-inheritance
- useless-return
- consider-using-set-comprehension
- consider-using-in
- logging-not-lazy
Ignore:
- not-an-iterable - false possitives for asyncio coroutines
Ignore all the above in qubespolicy/__init__.py, as the file will be
moved to separate repository (core-qrexec) - it already has a copy
there, don't desynchronize them.
Add the ability to handle commands having subcommands, like `qvm-block`
Split the ArgumentCheckVisitor in an OptionsCheckVisitor &
SubCommandCheckVisitor. The OptionsCheckVisitor checks options given
in a section named 'Options' (case insensitive), while the
SubCommandCheckVisitor dispatches on a section named 'Commands' (case
insensitive).
This also fixes finding the undocumented command arguments. The previous
solution with depart_document did not work. NodeVisitor does not dispatch to
depart_document() even if it's mentioned in the documentation.
