971154 - Add an uploads section with appropriate commands to the ISO CLI.
Change some classmethods to staticmethods.
Combine two import statements into one line.
Don't use self.__class__ as first argument to super().
Use the ISO model's TYPE attribute instead of using it from ids.
Convert some methods to be static.
Merge branch 'rbarlow-971154' into pulp-2.2

Conflicts:
	pulp_rpm/src/pulp_rpm/extension/admin/iso/structure.py
Merge branch 'pulp-2.2'