all types of selectors should send the selected item's label only. includes test.
Merge pull request #284 from Ubuntu-Solutions-Engineering/fix-radiobutton-submit

all types of selectors should send the selected item's label only
move satisfies() into maas module, because it only works with MAASMachines. Add tests.
add tests for machines with asterisks (possibly unused)
Merge pull request #286 from Ubuntu-Solutions-Engineering/move_satisfies

Move satisfies() into maas/ and add tests
Add test for mismatching charm name in file
add test for is_assigned
Add initial placement UI unit test suite
remove unused ServiceWidget init parameter, fix typo in test log
fix typo in comment
simplify tests, add test for actions
add tests for machine widgets
add MachinesList tests and remove PropertyMock overuse