minor refactor to comparable

Author: rlogiacco

it.baeyens.arduino.core/src/it/baeyens/arduino/managers/Package.java

@@ -13,7 +13,7 @@
 import java.util.List;
 import java.util.Map;
 
-public class Package {
+public class Package implements Comparable <Package>{
 
     private String name;
     private String maintainer;
@@ -172,4 +172,9 @@ public int hashCode() {
 	return this.name.hashCode();
     }
 
+	@Override
+	public int compareTo(Package other) {
+		return name.compareTo(other.name);
+	}
+
 }

it.baeyens.arduino.core/src/it/baeyens/arduino/ui/PlatformPreferencePage.java

@@ -81,12 +81,7 @@ private void updateTable() {
 	this.platformTree.removeAll();
 
 	List<Package> packages = Manager.getPackages();
-	Collections.sort(packages, new Comparator<Package>() {
-	    @Override
-	    public int compare(Package arg0, Package arg1) {
-		return arg0.getName().compareTo(arg1.getName());
-	    }
-	});
+	Collections.sort(packages);
 
 	for (Package curPackage : packages) {
 	    TreeItem packageItem = new TreeItem(this.platformTree, SWT.NONE);