Fix argparse parser bugs
Add 'command' positional argument
fix: make additional arguments optional
fix: with argparse in place it is not required to parse the commandline
arguments by hand
fix: make sure to only pass valid arguments to fabric
fix: hardcode command list to not import littlechef.runner too early
test_commands: fixed output to the use of argparse
Merge pull request #174 from tobami/fix-argparse-bugs

Fix argparse bugs