bbkeys

as announced as a comment to tracker 740764 (feature
request: send to next/prev desktop), i have written a
patch to that problem.
i just saw that sfrowd has posted his own patch (he
contacted me after i posted a clumsy first solution in
the blackbox wiki); i've had a short look at it: due to
the fact that we use the same action name, our
solutions are rather similar in some files (actions.hh,
for example), but differ a bit when it comes down to
the action proper. (i chose to slightly extend the
cycleWorkspace function and use its output for a
smaller action, he wrote own lines, making it a bit
bigger, but also more powerful).

please tell me what you think of it!

p.s. i don't know exactly how to create a patch, so
please check it before you try to apply it and, if
necessary, tell me how to do it correctly so that i can
attach the correct patch