problems: render + send_result view (not used/working?)

Replaced HttpResponses, render_to_response, template.render with just
render.
render contexts are variables now, defined before the call to render
method
Created send_result view---> BUT still not used (and/or) working?
problems: send result form

added if error_message: still not used
added form to send result. For the moment redirects to stats view, but
still wo processing the result.