Documentation fixups.
More documentation fixups.
Added more control candidate information.
Added untested initial Grid. Now to write a test.
Wrote the Grid test and found/fixed one error in Grid's position calculations. (If you compare the previous Windows build with this one, you may not notice a difference; this is because of the default preferred size of Labels being too wide).
Fixed up Grid and Space() documentation.
More documentation fixups.
No longer preliminary (I was going to wait until I started the OS X backend, but).