Dynamically pass params to command

[rastasheep]

It would be great that you can create "meta" commands with placeholders, and pass options dynamically.

So it would add possibility for commands like: open:tw open:fb (in this case option separator is :) and in my command some placeholder would be replaced with params alert('opening $PARAM') would become alert('opening tw').

[iambriansreed]

This is like issue #34.

Planning on build a proper command line integration with actual command and params.
Still in the planning phase.