V. 1.6.0

V. 1.6.0:

- Changed default turn marking to match the default road better (1 turn marking instead of 2 as its a 2-way road and not a 1-way road)
- Increased default terrain y-offset for roads and intersections so you shouldn't have to change it as often (It's a hard balance because either the terrain sometimes goes over the road or the road floats quite a distance above the terrain, especially when the road is steep). It's near inpossible to make the terrain perfect under and around the road but a quick smooth brush always fixes it.
- You can now hold down L while moving a control point to lock its y-position to it's main point y-position. This way your road won't go into the ground or up into the sky unwantenly when you move it with the free move control (little white box).
- You can now hold down G while creating a prefab line/road point to create a straight segment.
- Inproved insert point drastically, by using De Casteljau's_algorithm the curve will be nearly the same as before the insertion so in most cases you won't have to manually move the point.
- Fixed everything breaking when connecting a road the one of the center points of another road when that road already was connected to a end intersection. Thanks florinel2102 for reporting this!
- Fixed some cases where undo led to errors

Why did I choose the keybinds that I chose? I chose those who don't have any other functionality (CTRL-D duplicates so D can't be used for example).