Added divarea developers samples for image2, mathjax and placeholder.
Merge branch 't/11134'
Cancel blur when moving selection to pasteBin in Firefox.
Changelog entry.
Merge branch 't/10787b'
Fixed: An error thrown when selecting entire editable's contents while fake selection is on.
Simplified the condition.
Fix all ranges, on all browsers and do this only if hiddenSelCon really exists.