[dwm] {V,H}RATIO

Hi there,

I pushed a my new tile() algorithm to hg tip. It now supports
two distinct ratios, a vertical and a horizontal.

Each ratio is manipulated using the inc{v,h}ratio() functions.

See config.arg.h how I like the ratios change in a combined way,
and config.default.h only changes the horizontal ratio and keeps
the vertical ratio at 1.0.

Regards,

-- 
 Anselm R. Garbe >< http://www.suckless.org/ >< GPG key: 0D73F361