enable all tests when running them
update v8 tests

 * add a counter test to show how a state can be preserved in js
 * update test for v8: instead of hiding the method, ignore override (common case in JS on
 errorneous input)
revert a6dd980b

the reverted functionality breaks all v8 tests for metagen override, and
dissalows maintaining a state in V8 objects (even inherited via prototype)
add metagen test files
Merge pull request #32 from cpgf/feature/call-child-wrapper-object-in-js

Feature/call child wrapper object in js