Changed Google Visualization API location to optionally use a system property.
Changed default API location to use HTTPS.
diff --git a/bundles/org.eclipse.rap.rwt.visualization.google/src/org/eclipse/rap/rwt/visualization/google/internal/GoogleAPIResource.java b/bundles/org.eclipse.rap.rwt.visualization.google/src/org/eclipse/rap/rwt/visualization/google/internal/GoogleAPIResource.java
index a031858..e329424 100644
--- a/bundles/org.eclipse.rap.rwt.visualization.google/src/org/eclipse/rap/rwt/visualization/google/internal/GoogleAPIResource.java
+++ b/bundles/org.eclipse.rap.rwt.visualization.google/src/org/eclipse/rap/rwt/visualization/google/internal/GoogleAPIResource.java
@@ -15,6 +15,8 @@
 
 public class GoogleAPIResource implements IResource {
 
+  private static final String API_KEY = "org.eclipse.rap.rwt.visualization.google.api";
+
   public String getCharset() {
     return "ISO-8859-1";
   }
@@ -28,7 +30,8 @@
   }
 
   public String getLocation() {
-    return "http://www.google.com/jsapi";
+    //TODO this should be converted to use bundle properties 
+    return System.getProperty(API_KEY, "https://www.google.com/jsapi");
   }
 
   public boolean isJSLibrary() {