Version 6.19.0

Changelog for version 6.19.0

New features

Title	Description	Ticket
Add text length counter	Create text length counter class* Add text length counter to status bar	XCD-148
Added possibility to support multiple users in the reviewbar entry		XEPRO-11
Added flag to prevent simultanous save (Editor::enableSimultanousSave)		XED-58

Fixes

Title	Description	Ticket
Added inserted elements to 'drop' event		XED-00045
Fixed issue in Range::isRemovable		XED-00046