Fixed JSSC upload problem with Arduino Due on MacOSX

JSSC, on unix based systems like linux and MacOSX, when listing serial ports
tries to open each port to ensure its existence. While this check works well for
linux ports /dev/ttyS0..31, it leads to unexpected behaviuors on MacOSX in
particular with USB-CDC virtual serial ports.
This patch disable the check and keep it enabled only for linux ttySxx ports.

This adds also tty.* and cu.* to the list of available serial ports on MacOSX.

app/src/cc/arduino/packages/discoverers/SerialDiscovery.java

@@ -29,15 +29,15 @@
 
 package cc.arduino.packages.discoverers;
 
-import cc.arduino.packages.BoardPort;
-import cc.arduino.packages.Discovery;
-import jssc.SerialPortList;
+import java.util.ArrayList;
+import java.util.List;
+
 import processing.app.Base;
 import processing.app.Platform;
+import processing.app.Serial;
 import processing.app.helpers.PreferencesMap;
-
-import java.util.ArrayList;
-import java.util.List;
+import cc.arduino.packages.BoardPort;
+import cc.arduino.packages.Discovery;
 
 public class SerialDiscovery implements Discovery {
 
@@ -48,7 +48,7 @@ public List<BoardPort> discovery() {
 
     List<BoardPort> res = new ArrayList<BoardPort>();
 
-    String[] ports = SerialPortList.getPortNames();
+    List<String> ports = Serial.list();
 
     for (String port : ports) {
       String boardName = os.resolveDeviceAttachedTo(port, Base.packages, devicesListOutput);

app/src/processing/app/Serial.java

@@ -24,14 +24,17 @@
 
 package processing.app;
 
-import jssc.*;
-import processing.app.debug.MessageConsumer;
+import static processing.app.I18n._;
 
 import java.io.IOException;
 import java.util.Arrays;
 import java.util.List;
 
-import static processing.app.I18n._;
+import jssc.SerialPort;
+import jssc.SerialPortEvent;
+import jssc.SerialPortEventListener;
+import jssc.SerialPortException;
+import processing.app.debug.MessageConsumer;
 
 
 public class Serial implements SerialPortEventListener {