added serial opening mod for Leonardo in examples

WiFi/examples/ConnectNoEncryption/ConnectNoEncryption.ino

@@ -18,8 +18,11 @@ char ssid[] = "yourNetwork";     // the name of your network
 int status = WL_IDLE_STATUS;     // the Wifi radio's status
 
 void setup() {
-  // initialize serial:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/ConnectWithWEP/ConnectWithWEP.ino

@@ -30,8 +30,11 @@ int keyIndex = 0;                                // your network key Index numbe
 int status = WL_IDLE_STATUS;                     // the Wifi radio's status
 
 void setup() {
-  // initialize serial:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
 
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/ConnectWithWPA/ConnectWithWPA.ino

@@ -19,8 +19,11 @@ char pass[] = "secretPassword";  // your network password
 int status = WL_IDLE_STATUS;     // the Wifi radio's status
 
 void setup() {
-  // initialize serial:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/ScanNetworks/ScanNetworks.ino

@@ -19,8 +19,11 @@
 #include <WiFi.h>
 
 void setup() {
-  // initialize serial and wait for the port to open:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/WifiChatServer/WifiChatServer.ino

@@ -34,8 +34,11 @@ WiFiServer server(23);
 boolean alreadyConnected = false; // whether or not the client was connected previously
 
 void setup() {
-  // start serial port:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/WifiCosmClient/WifiCosmClient.ino

@@ -46,8 +46,11 @@ boolean lastConnected = false;                 // state of the connection last t
 const unsigned long postingInterval = 10*1000; //delay between updates to Cosm.com
 
 void setup() {
-  // start serial port:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/WifiCosmClientString/WifiCosmClientString.ino

@@ -51,8 +51,11 @@ boolean lastConnected = false;                 // state of the connection last t
 const unsigned long postingInterval = 10*1000;  //delay between updates to cosm.com
 
 void setup() {
-  // start serial port:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/WifiTwitterClient/WifiTwitterClient.ino

@@ -50,8 +50,11 @@ void setup() {
   // reserve space for the strings:
   currentLine.reserve(256);
   tweet.reserve(150);
-  // start serial port:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/WifiWebClient/WifiWebClient.ino

@@ -40,7 +40,11 @@ IPAddress server(173,194,73,105);  // numeric IP for Google (no DNS)
 WiFiClient client;
 
 void setup() {
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/WifiWebClientRepeating/WifiWebClientRepeating.ino

@@ -36,8 +36,11 @@ boolean lastConnected = false;                  // state of the connection last
 const unsigned long postingInterval = 10*1000;  // delay between updates, in milliseconds
 
 void setup() {
-  // start serial port:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {

WiFi/examples/WifiWebServer/WifiWebServer.ino

@@ -29,8 +29,11 @@ int status = WL_IDLE_STATUS;
 WiFiServer server(80);
 
 void setup() {
-  // start serial port:
+  //Initialize serial and wait for port to open:
   Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
   
   // check for the presence of the shield:
   if (WiFi.status() == WL_NO_SHIELD) {