- [ ] When dragging between columns we should show the insertion point and insert the card at that point.
- [ ] Ability to create, move, remove columns.
- [ ] Make it look more the makesprite/concrete.css theme.
- [x] Give each column a max width of 450px and have them stretch to fill the area up to that.
- [x] Don't put carriage returns between individual TODO list items. As far as possible try to preserve original formatting, just moving individual lines around without disturbing other lines.