Bug 21308: Results from order search do not show the search parameters

Bug 21308: Results from order search do not show the search parameters

This patch modifies the orders search results page so that the search
form appears in the sidebar. This allows the user to view and re-use
their search parameters.

This patch also moves the "no search results" message to the top of the
page in a message box.

To test, apply the patch and go to Acquisitions -> Orders search.

 - Perform a search which will return results. In the sidebar you should
   see the full orders search form with your search parameters in the
   form fields.

 - Perform a search which will return no results. You should see the
   "Your search returned no results." message in a standard message
   dialog.

Signed-off-by: Bin Wen <bin.wen@inlibro.com>
Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>