Removed arrange_windows from remove_client and made it optional for kill_client to rearrange windows. This helps to #23.
Removed the need for dmenu2
Partially fixed #25. BORDER_PX needs to be taken into account next.
Fixed #25 and allowed the gaps of floating clients to be adjusted.
Fixed #26.
Fixed #27 and improved #25.
Changed geom reply from checked to unchecked.