Closes #4643

Closes #4641

(when there is a gutter)

Issue #4637

Which often caused strangeness around empty lines

Issue #4307

Closes #4609

Closes #4628

Issue #4491

Since rollup is now adding those

So that we don't leave a stray selection that'll be reset
to some nonsense position by the DOM changes.

Closes #4625

`{@inject}` is used for injected parameters instead of normal
parameters. It behaves the same as `{@param}`.

Issue #4194
Issue #4500

Issue #4194
Issue #4500

Issue #4194
Closes #4500

Closes #4635

Starting with Emacs 24.4 the meanings of Enter and Ctrl+J was swapped, so that
RET does newline-and-indent while C-j is the simple non-electric newline.  This
change makes codemirror4 match Emacs.

Issue #4627

This is based on work by Radek Piórkowski <radek25c@gmail.com>.

Identifiers that contain the identifierQuote like a table named
my"table are now doublicated correctly (e.g. quoting produces:
"my""table"). This fixes 2 failing tests, but 2 others still fail.

Closes #4623

Closes #4621

The identifier-quote that a language uses around identifiers can now
be defined using "identifierQuote" when defining a mimetype.
Previously, backticks where hardcoded, but this is not standard SQL
(which uses double quotes). For example, SQLite defines double quotes
as preferred way to quote identifiers:
http://sqlite.org/lang_keywords.html

Issue #4618

This reverts commit a44e76a0.

Issue #4606