this adds the proper headers for caching.
this adds the proper headers for caching.

http://subetha.tigris.org/issues/show_bug.cgi?id=22

jeff needs to fix svn and also tell me how to factor this code 
out into a reusable importable file so that the same code 
doesn't have to be copy/paste into each file.

git-svn-id: 60dcf9651b07bc729a3db0984941a1a33fd6e0f2@249 68df8246-1725-11de-bcda-2bb9902f8029

msoftware/subetha,msoftware/subetha,msoftware/subetha,voodoodyne/subetha,voodoodyne/subetha,msoftware/subetha,voodoodyne/subetha,voodoodyne/subetha