Add version to about screen (fix #25)

res/layout/about.xml

@@ -22,6 +22,7 @@
         android:orientation="vertical" >
 
         <TextView
+            android:id="@+id/title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginBottom="@dimen/about_spacing"