Stupid test...

I won't invest more time on this for a long while. There are still many
things to fix and make it work, starting with the tests.
use REST from js, small example

If you want to test a REST service using PUT, GET, POST and DELETE
methods all you need to do is set the URL in line 28 and then use the
examples in lines 32-35. Please note that in the case of POST you may
need to introduce some data (parameter data), you can combine all these
calls in any preferred way. This is a minimum wrapper, better things
could be done, but that would take more time.
jsonCall for js redone

Asynchronous return values for the $.ajax call cause some trouble, so
this is still far from perfect, but it's much better than previous
version nonetheless.
Updated testers for the REST service

In Python and Javascript, now both working with the new API.

The API should not have changed IMHO. Be aware that the Javascript test is much smaller than the Python test, I simply took one call from the Python test and put it in the Javascript test. In Python random values are generated.
Added coffe variant of the rest test

Simply a translation to see how it looks on coffee script, no big deal, most of the lines are simply the unfold of some objects, so I guess it adds something to readability?

It's a fairly subjective question and I'm not certain about my opinion yet.