Adding Android platform

src/android/com/phonegap/plugin/mobileaccessibility/JellyBeanMobileAccessibilityHelper.java

@@ -0,0 +1,22 @@
+package com.phonegap.plugin.mobileaccessibility;
+
+import android.annotation.TargetApi;
+import android.os.Build;
+import android.view.accessibility.AccessibilityEvent;
+
+@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+public class JellyBeanMobileAccessibilityHelper extends
+		IceCreamSandwichMobileAccessibilityHelper {
+	
+	@Override
+	public void announceForAccessibility(CharSequence text) {
+        if (mAccessibilityManager.isEnabled() && mParent != null) {
+            AccessibilityEvent event = AccessibilityEvent.obtain(
+                    AccessibilityEvent.TYPE_ANNOUNCEMENT);
+            mWebView.onInitializeAccessibilityEvent(event);
+            event.getText().add(text);
+            event.setContentDescription(null);
+            mParent.requestSendAccessibilityEvent(mWebView, event);
+        }
+    }
+}