WIP on slice.

Add valueOfObject and observeObjectNow functions.
Testing framework.

Add asynchonous functions in Asy.js.
Fix up keepSpliced, still not working right.
Get tests basically working.

Add tests/Tst.js to test tests.
Tweak test behavior, nesting format, output colors.
Add timing to tests.

Implement makStopwatch in Utl.
Fix up some test-related things.
Use classes for reporters.

Clean up pass/fail counting logic.
Add options such as hidePasses, hideTime, etc.
Fix up test harness.
Clean up way test results statuses are handled.
Change test to take only one function.
Add skipping of tests and test groups.
Replace chained .skip call on tests with skipify.