Issue #778

Issue #778

Issue #778

And fix example code in demo.

Issue #778

Issue #778

Issue #778

Issue #778

Issue #778

Issue #778

Issue #778

Issue #778

Issue #778

Issue #778

Issue #778

Closes #2161

Add unit tests.

Also resorted the next few lines so one would not stick out farther than
the others.

https://developer.mozilla.org/en-US/docs/Web/CSS/animation-fill-mode

Closes #2160

Closes #2162

Closes #2157

This way, it synchronously returns the current value, rather
than only being updated when an async focus/blur event fires.

Closes #2151

Return null from moveTillCharacter if nothing is found, so that if a
deletion operation is active but no match was found, nothing gets
deleted. Add a unit test for moveTillCharacter.

The method isn't present on all supported platforms, and these
tests tested someting very obscure, and already failed on the v4
branch which representes the editor content differently.

Issue #2152

Don't generate <span class="cm-"> nodes when token() returns only line-foo/line-background-foo styles.

On IE8 only scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight evaluates to -ve in some cases. Guard that with returning 0 in that case. Seems a bug in IE8, so this can be treated as a workaround.

Does all the version bumping and such.