Fix bug with incorrect ordering of distance markers. Problem introduced by back-end suddenly ordering correctly.
Add Underscore as dependency
Merge pull request #33 from IngeniumGolf/fix-marker-order

Correct distance marker ordering
Split on `to` and `carry`.
Previous fix for distance marker ordering did not
take the `where` key into account; now we do.
Merge pull request #34 from IngeniumGolf/distance-marker-ordering

Fix bug on distance marker grouping
Edit distance markers
Place markers vertically, allow more space.