0.2.0

• Support command level and argument level validators.
• knack.commands.CLICommandsLoader now accepts a command_cls argument so you can provide your own CLICommand class.
• logging: make determine_verbose_level private method.
• Allow overriding of NAMED_ARGUMENTS
• Only pass valid argparse kwargs to argparse.ArgumentParser.add_argument and ignore the rest
• logging: make determine_verbose_level private method
• Remove cli_command, register_cli_argument, register_extra_cli_argument as ways to register commands and arguments.

FULL CHANGELOG