Mark version 4.1

Mark version 3.24

Mark release 4.0

Mark release 3.23

Mark 4.0 release candidate 2

Tag 4.0 release candidate 1

Mark release 3.22

Merge branch 'master' into v4

Conflicts:
	addon/comment/continuecomment.js
	lib/codemirror.js
        mode/puppet/puppet.js

Drop setLine and removeLine from the API

Mark release 3.21