Minor doc and method name changes.

Respective tests updated.

src/main/java/ca/recrown/islandsurvivalcraft/pathfinding/DepthFirstSearch.java

@@ -43,7 +43,7 @@ public class DepthFirstSearch {
         startNode = new DFSNode(null, x, y, endNode);
     }
 
-    public void setDirectionPosition(int x, int y) {
+    public void setEndPosition(int x, int y) {
         endNode = new DFSNode(null, x, y, endNode);
     }
 
@@ -72,12 +72,11 @@ public class DepthFirstSearch {
     }
 
     /**
-     * Finds the end node. If an end node is set, it will try going in that
-     * direction first. Will not set end node if one wasn't found, therefore,
-     * previous end node data is kept.
+     * Finds a coordinate determined by a target validator. If an end node is set,
+     * it will try going in that direction first.
      * 
      * @param targetValidator
-     * @return
+     * @return If it succeeded in finding an end node.
      */
     public boolean findTarget(CoordinateTargetValidatable targetValidator) {
         if (coordValidatable == null)