* ios_user module - add sshkey support
* ios_user - Add version_added to sshkey option
* ios_user - pep8 indentation fixes in unit tests
* ios_user - use b64decode method that works on python 2 and 3
* Fix over-byte
* Update ios tests to call `provider`
To continue to support testing `connection: local`
* Fix command dict handling in ios_user
* Clean up unit tests, too
* move set_module_args to units.modules.utils
* unit tests: reuse set_module_args
* unit tests: mock exit/fail_json in module.utils.ModuleTestCase
* unit tests: use module.utils.ModuleTestCase
* unit tests: fix 'import shadowed by loop variable'