Fixing menu items.

The complicated bit that was missing was the delete action, which is now its own activity with proper intent handling.

MyTracks/AndroidManifest.xml

@@ -79,6 +79,17 @@ limitations under the License.
       </intent-filter>
     </activity>
 
+    <activity android:name="com.google.android.apps.mytracks.DeleteTrack"
+              android:label="@string/deletetrack_title"
+              android:theme="@android:style/Theme.Translucent.NoTitleBar"
+              android:noHistory="true">
+      <intent-filter>
+        <action android:name="android.intent.action.DELETE" />
+        <category android:name="android.intent.category.DEFAULT" />
+        <data android:mimeType="vnd.android.cursor.item/vnd.google.track" />
+      </intent-filter>
+    </activity>
+
     <activity android:name="com.google.android.apps.mytracks.WaypointDetails"
               android:label="@string/waypointdetails_title">
       <intent-filter>