This patch was primarily an effort to reduce traceback errors for
work that sivel was doing. Part of (and in some cases in addition to)
that, the following was done.
* Removed re-def of cleanup_tokens.
* Changed parameter args to be keywords.
* Changed imports to include new module_util locations.
* Imports also include developing (sideband) module_util locations.
* Changed to using F5Client and plain AnsibleModule to prevent tracebacks caused by missing libraries.
* Removed init and update methods from most Parameter classes (optimization) as its now included in module_utils.
* Changed module and module param references to take into account the new self.module arg.
* Minor bug fixes made during this refactor.
* Update validate-modules arg_spec introspection to be faster, by only mocking the imports we explicitly list
* The use of types.MethodType in redhat_subscription wasn't py3 compatible, use partial instead
* Remove argument_spec import hacks, make them errors, we can ignore them with ansible-test
* Enable the --arg-spec flag for validate-modules
