Revised text-transform tests without ref test links

These tests should never have tried to link to reftests, since they are font dependent. Where the webfont doesn't cover (ie. recent additions to Unicode) a standard reftest could produce false positives by matching tofu with tofu.

However, these tests do work by presenting visual references on the test page, so that at least the tester's job is significantly helped.

Note that I refer to the editors copy of the spec in these new files, since that is much more advanced than the published version.  I hope that's not a problem.