Make it possible to load Sky demos from local bundles

sky/shell/android/org/domokit/sky/shell/SkyActivity.java

Index: sky/shell/android/org/domokit/sky/shell/SkyActivity.java
diff --git a/sky/shell/android/org/domokit/sky/shell/SkyActivity.java b/sky/shell/android/org/domokit/sky/shell/SkyActivity.java
index 0724ebf9a1d4efcfafaafdb4538ff2ce4af1f106..de84817719f6a725f88ff88354e175cd5355a5c6 100644
--- a/sky/shell/android/org/domokit/sky/shell/SkyActivity.java
+++ b/sky/shell/android/org/domokit/sky/shell/SkyActivity.java
@@ -85,4 +85,14 @@ public class SkyActivity extends Activity {
     public void loadUrl(String url) {
         mView.loadUrl(url);
     }
+
+    public boolean loadBundleByName(String name) {
+        File dataDir = new File(PathUtils.getDataDirectory(this));
+        File bundle = new File(dataDir, name);
+        if (!bundle.exists()) {
+            return false;
+        }
+        mView.loadBundle(bundle.getPath());
+        return true;
+    }
 }