Special criterion added. Marking properties added. Remember last selection.

Having no 'special' criterion caused issues. Fixed.

Now have genuine weighted marks. Cleaned up schema SQL.

Added "copy to clipboard" feature. Added some comments.

A bunch of improvements.

Make vertical scroll bars appear. ...

They appear, but I hard to hardcode the text area height meaning
that we now have a fixed size text area, and the vertical scroll
bars are always visible.

The is mostly because of a bug that causes the text areas to grow
horizontally infinitely if you leave it to the layout manager to sort
out.

Merge origin/master

Initial commit

Initial commit.