Spring cleaning - remove unnecessary prints, move comments.
Fix tiling on startup.

Should also fix e.g. Firefox resizing.
Fix removing first tile in halflayout
Add option to disable borders.

It is _strongly_ recommended for now to use FocusUnderMouse with this,
as it's otherwise almost impossible to tell which window is focussed.
Move onLayoutAreaChange to layout

For now it's the same in all layouts anyway (and untested, since kwin
doesn't seem to hand the new area)
Fix removing windows in halflayout with struts

Until now, the windows would leave a hole the height of the strut
Add some errorchecking to minimizehandling, prepare release