(Even when the widest-line heuristic goes wrong.)

Also fixes CodeMirror.innerMode to give up on null or fixpoint

Issue #1704

The function was referring to "cm", which is not necessarily defined.

Issue marijnh/tern#200

This makes sure that when a DOM element changed size, we propagate
that change properly.

Issue #1681

The name var was getting clobbered in the initial for-in loop, so the
second loop would never be entered.

Issue #1694

This reverts commit d59e2ae4.

Closes #1698

Issue #1701

Closes #1657

Closes #1696

UNION should be a keyword (like FILTER, et.al.) not an op

Closes #1693

Closes #1691

Issue #1684

Issue #1474

Issue #1682

Issue #1682

Also adds parameters to a range's clear event.

Issue #1678
Issue #1679