Squash command arguments to a single action argument

[Mihael Schmidt]

At the moment the different actions may have separate command arguments, f. e. addrepo uses the repo argument. All actions use a single argument. Move all extra action parameters to a single action parameter.

[Mihael Schmidt]

squashed multiple command parameters into one action parameter, fixed issue #24

→ <<cset 343b5b6d3efd>>