* simplify translation
* bump version
* deprecate translations
* pass date-range as argument to export and timesheet filter URL from monthly overview report
* added class for use in responsive screens
* show technical role name
* simplify multi-update title
* more statistic models
* bump composer packages
* max duration per entry increased from 8 to 10 hours
* fixes#3981 - clickable area in dropdown too small
* fixes#4008 - duplicate activities in project-details report
* headers and summary styling in project-details report
* show billable stats in project-details report
* added new invoice variable for entry.duration_format
* fix truncated comments for customer, project and activity
* fix export button label for non-translated renderer
* fixed avatar size if image or SVG is used
* filter timesheets by billable state in API