Added four new layouts

[OrBaruk]

Here are some new layouts, I was not able to test them with multiple monitors.

• columns:: All windows uses the full height of the screen while the horizontal space equally shared.
• rows: All windows uses the full width of the screen while the vertical space is equally shared.
• geometric progression (gp): First window occupy half the screen, second window half of the remaining and so on until the last window occupy all the remaining space, has a vertical and horizontal version.

[csaunders]

Could you include some screenshots of these layouts?

[OrBaruk]

Here follows some screenshots:

Columns

Rows

GP-Horizontal

GP-Vertical

[csaunders]

looks like your indentation is a little off here.

[csaunders]

This is rad. I love the golden ratio-ness of the GP ones!

[OrBaruk]

Fixed the indentation. Also, maybe someone can find a better name for the GP layouts.

[nathankot]

@OrBaruk how about phi-horizontal, phi-vertical? as in the golden ratio haha up to you ;)

[nathankot]

@OrBaruk lets stick with the gp- names :) also added screenshots to the readme thanks!