Moved DoubleArrayList to util.collection.

src/main/java/com/sk89q/worldedit/EditSession.java

@@ -58,6 +58,7 @@ import com.sk89q.worldedit.shape.ArbitraryShape;
 import com.sk89q.worldedit.shape.RegionShape;
 import com.sk89q.worldedit.shape.WorldEditExpressionEnvironment;
 import com.sk89q.worldedit.util.TreeGenerator;
+import com.sk89q.worldedit.util.collection.DoubleArrayList;
 
 import javax.annotation.Nullable;
 import java.util.*;

src/main/java/com/sk89q/worldedit/util/collection/DoubleArrayList.java

@@ -17,7 +17,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-package com.sk89q.worldedit;
+package com.sk89q.worldedit.util.collection;
 
 import java.util.List;
 import java.util.ArrayList;