Update QuadTreeGuiTest.java
Update QuadTree.java
distance from linesegment a-b to point p
Rename DistanceFromLIne to DistanceFromLine
no message
getClosestRoad(double x1, double y1) tilføjet (kald den på root). test gerne, men tror den bliver langsom (linær tid)
Merge branch 'master' of https://github.com/Gebuz/Group-B into feature/GUI

Conflicts:
	GuiDrawLines/QuadTreeGuiTest.java