Test fixes.

Several fixes to existing tests, the details are:

* Fix for a bug in `findInputs()` which prevented "discounted" check box in testFormBinding.html from working
* Fix for put-selector syntax error in testFormBinding.js
* `then()` -> `receive()` switch in testStateful.js
* Switch in MID format from `../test` to `dbind/tests/test`, as Dojo 1.7/1.8 AMD loader does not seem to append ".js" and I ended up with getting 404 (Please let me know if `../test` format should really work)