Issue #1214

Issue #1206

Issue #1209

Issue #1076

Issue #1203

Closes #1204

Issue #1203

Closes #1207

Issue #1198

Re-focusing is harmless on desktop browsers, and helps paper over
some browser bugs (such as firefox not 'really' focusing a textarea
in an iframe when the textarea is focused before the frame gains focus)

It had accidentally started taking window coordinates in the 3.0 refactor.

There's no guarantee that we'll be able to get the document from the parent
link (might not be set).

Closes #1199

Issue #1187

Issue #1194

Issue #1194

Where it mysteriously makes the editor stop working (typed input no longer goes to
textarea) whenever highlighting fires.

Issue #1193

This removes some duplicate code, and delays the scrolling to the next display update
which makes it less likely to interfere with other actions in unexpected ways.

Issue #1189

Modified addWidget logic to modify the "near" vertical positioning to default to positioning the element below the position, and added "above" vertical positioning to default to sticking the widget above the pos instead

See 67a54297

Closes #1184

Closes #1185