If record doesn't exist corresponding to active_id. abort(404) #4780

If record doesn't exist corresponding to active_id, then logically url
is invalid and hence url should be aborted(404) at dispatcher level
only.

Github Issue: #204

Conflicts:
	trytond_nereid/tests/test_routing.py
Merge pull request #225 from PritishC/develop

If record doesn't exist corresponding to active_id. abort(404) #4780