Fix formatting, refine comments.

Author: chrfrantz

src/main/java/org/nlogo/extensions/dbscan/DBSCANExtension.java

@@ -218,7 +218,7 @@ public Object report(final Argument[] args, final Context ctx)
             if (maxDistance < 0) {
                 throw new ExtensionException(DBSCANExtensionErrors.ERROR_NEGATIVE_MAXIMUM_DISTANCE_OF_ELEMENTS);
             }
-            
+
             if (ctx == null || ctx.world() == null) {
                 throw new ExtensionException(DBSCANExtensionErrors.ERROR_MODEL_CONTEXT_INACCESSIBLE);
             }
@@ -274,7 +274,7 @@ public Object report(final Argument[] args, final Context ctx)
 
             // Convert generated lists of clusters to nested LogoList
             LogoListBuilder list = new LogoListBuilder();
-            
+
             for (ArrayList<org.nlogo.api.Agent> intList: tmpList) {
                 LogoListBuilder internalBuilder = new LogoListBuilder();
                 for (org.nlogo.api.Agent agent: intList) {

src/main/java/org/nlogo/extensions/dbscan/metrics/DistanceMetricNetLogoAgentLocationHorizontalCylinder.java

@@ -18,7 +18,7 @@
 public class DistanceMetricNetLogoAgentLocationHorizontalCylinder implements DistanceMetric<Agent>{
 
     private final int height;
-    
+
     public DistanceMetricNetLogoAgentLocationHorizontalCylinder(final int height) {
         this.height = height;
     }

src/main/java/org/nlogo/extensions/dbscan/metrics/DistanceMetricNetLogoAgentLocationTorus.java

@@ -19,7 +19,7 @@ public class DistanceMetricNetLogoAgentLocationTorus implements DistanceMetric<A
 
     private final int width;
     private final int height;
-    
+
     public DistanceMetricNetLogoAgentLocationTorus(final int width, final int height) {
         this.width = width;
         this.height = height;

src/main/java/org/nlogo/extensions/dbscan/metrics/DistanceMetricNetLogoAgentLocationVerticalCylinder.java

@@ -18,7 +18,7 @@
 public class DistanceMetricNetLogoAgentLocationVerticalCylinder implements DistanceMetric<Agent>{
 
     private final int width;
-    
+
     public DistanceMetricNetLogoAgentLocationVerticalCylinder(final int width) {
         this.width = width;
     }

src/main/java/org/nlogo/extensions/dbscan/metrics/DistanceMetricNetLogoAgentVariable.java

@@ -23,7 +23,7 @@ public DistanceMetricNetLogoAgentVariable(final String field) {
         // field variable has to be upper case; ensured in calling code
         this.field = field;
     }
-    
+
     @Override
     public double calculateDistance(final Agent val1, final Agent val2) throws DBSCANClusteringException {
         try {

src/main/java/org/nlogo/extensions/dbscan/metrics/DistanceMetricNetLogoPatchVariable.java

@@ -21,7 +21,7 @@ public class DistanceMetricNetLogoPatchVariable implements DistanceMetric<Agent>
     public DistanceMetricNetLogoPatchVariable(final Integer field) {
         this.field = field;
     }
-    
+
     @Override
     public double calculateDistance(final Agent val1, final Agent val2) throws DBSCANClusteringException {
         try {