Issue #2721

Bumping them for every release just adds too much git
noise and history blowup.

Issue #2426

It is turning into a major headache, since apparently a
lot of modes are written with the assumption that empty
tokens are okay.

Closes #2517

Simplify some things, change a name.

Issue #2468

Issue #2441

Also moves handling of electricChars to readInput, removing
the timeout kludge.

Issue #2029

Closes #2037

Closes #1992

Closes #1133

In order to not duplicate all its logic.

Issue #751

As spotted by the extended linter.

And move closetag over to it.

This makes the code that gets the XML state out of the mode actually
sound and extensible.

Issue #820

Add CodeMirror.defineOption function for defining new options.

Add findMatchingBracket to the methods exported by this extension.

Closes #746

The space between "return" and "die" was missing causing both to not get
highlighted. While in there I removed "cfunction as it was PHP4 only,
added "trait" (coming in 5.4), and added "__halt_compiler", "self",
"static", and "parent".

You will confuse the outer HTML parser if you do really weird things,
though.

Since v2 is the canonical CodeMirror at this point

This way, if you load the htmlmixed mode before the PHP mode, it won't
try to use that.

So that I can put other doc-related stuff there without polluting the
root dir.