fixed version of vizi lib with scene & render override. working scene creation and rendering in main.js. some trouble with using together with webtundra's still
css html js elem ref etc fixes so that webtundra at least refs to same scene now - the test object from the webtundra-client.js app thing works (directly to three scene at least)
cleanup comments & comment out unused own scene creation code now that wt works
Merge pull request #3 from antont/wtshows

webtundra's scene now used for vizi ok