Add since tags in doc strs for undo#lock/unlock.
Merge branch 'master' into major
Added @since tags in doc strs for stuff introduced in 4.1.
Made stylesheet parser compatible with editor after it started preloading styles set during initialization phase.
Overwrite editor#getStylesSet only once.
Do not wait until contentDom when stylesheetparser isn't loaded.
Introduced editor#stylesSet event to fix implicit dependency between plugins.
Merge branch 't/10136' into major
Introduced dontFilter argument for editor#insertHtml, editable#insertHtml and htmlDP#toHtml.