reading preferences from phonegap.xml

adds PreferenceNode and PreferenceSet classes as wrappers for the W3C
config.xml <preference> nodes

populates a PreferenceSet @preferences member

framework/test/com/phonegap/PreferenceNodeTest.java

@@ -0,0 +1,35 @@
+import org.junit.*;
+import static org.junit.Assert.*;
+
+import com.phonegap.PreferenceNode;
+
+public class PreferenceNodeTest {
+    @Test
+        public void testConstructor() {
+            PreferenceNode foo = new com.phonegap.PreferenceNode("fullscreen", "false", false);
+            assertEquals("fullscreen", foo.name);
+            assertEquals("false", foo.value);
+            assertEquals(false, foo.readonly);
+        }
+
+    @Test
+        public void testNameAssignment() {
+            PreferenceNode foo = new com.phonegap.PreferenceNode("fullscreen", "false", false);
+            foo.name = "widescreen";
+            assertEquals("widescreen", foo.name);
+        }
+
+    @Test
+        public void testValueAssignment() {
+            PreferenceNode foo = new com.phonegap.PreferenceNode("fullscreen", "false", false);
+            foo.value = "maybe";
+            assertEquals("maybe", foo.value);
+        }
+
+    @Test
+        public void testReadonlyAssignment() {
+            PreferenceNode foo = new com.phonegap.PreferenceNode("fullscreen", "false", false);
+            foo.readonly = true;
+            assertEquals(true, foo.readonly);
+        }
+}