Better JavaDoc for Activity.onSearchRequested().

     * 

     * <p>You can use this function as a simple way to launch the search UI, in response to a

     * menu item, search button, or other widgets within your activity. Unless overidden, 

     * calling this function is the same as calling:

     * <p>The default implementation simply calls 

     * {@link #startSearch startSearch(null, false, null, false)}, launching a local search.

     * calling this function is the same as calling

     * {@link #startSearch startSearch(null, false, null, false)}, which launches

     * search for the current activity as specified in its manifest, see {@link SearchManager}.

     * 

     * <p>You can override this function to force global search, e.g. in response to a dedicated

     * search key, or to block search entirely (by simply returning false).

     * 

     * @return Returns true if search launched, false if activity blocks it

     * @return Returns {@code true} if search launched, and {@code false} if activity blocks it.

     *         The default implementation always returns {@code true}.

     * 

     * @see android.app.SearchManager

     */