Blacklisting windows from a list should be simpler

[rudametw]

I like the fact that there's an interactive option to blacklist windows that allows you to click the window. However, there should be more options like blacklisting a window directly from the command line (e.g., grep the output of power_up | grep tomboy" to then run it through the blacklist.

Even better, if i do something like power_up --blacklist-window <tab><tab> should autocomplete with windows that can be blacklisted.

[bmhagui]

Last time we talked about auto-completion you told me that we would look into it later together. I don't clearly see how I could do this for my application.