Issue #2475

Another bug that is carried on from ie10 to ie11.

Closes #2476

Issue #2478

Only change `state.next` if `r.next` is defined, check if `r.regex` is
a String before converting it into a RegExp (in the optimization
step).

Closes #2474.

Issue #2481

Make sure the code that fixes the scrollbar style only fires once.

Issue #2451

Closes #2482

Issue #2486

It was returning negative values in the ch field.

Issue #2485

Issue #2485

Simplify some things, change a name.

Issue #2468

Closes #2473

Closes #2472

All of the distribution is under a single license.

To preserve existing change/cursorActivity handler ordering

Issue #2467

Issue #2465

Issue #2464

I.e. don't fire for a handler that wasn't registered when the change happened.

Issue #2463

This change is for enabling the display update while inputting text via the input method.

Issue #2457

This reverts commit 475b2be0.

Issue #2452
Issue #2384

When the call didn't result in an actual change (for example
line already had the given class), changeLine would return null.

This doesn't seem useful, and caused issue #2438. It now always
returns the line handle (as documented).

Issue #2442

Issue #2441

Issue #2438

Issue #2448