[Caja] Issue 115071: Removes deprecated stuff and speeds up typeof

[Mark S. Miller]

Again sending manually because no automated msg generated.


Issue  115071: Removes deprecated stuff and speeds up typeof

Removes deprecated methods on cajita and ___.
Removes various internal uncalled functions.
Speeds up typeof by wrapping RegExps instead of taming them.
Not to be committed until we can measure the difference.

Reviewer: Ihab.

-- 
    Cheers,
    --MarkM