Added label spacer to process management canvas, which sets positions of transition labels dynamically to avoid overlapping labels.
Fixed: Queue and Service delimiter '::' should be replaced in the output by ': :' to allow browsers a line break (bug#7531).
Updated CHANGES.

Conflicts:
	CHANGES.md
Fixed: Ticket overviews don't show column headers for priority and unread articles in small mode (bug#7440).
Fixed bug#9616 - Too long activities and transitions are not displayed correctly.
Fixed bug#10177 - Missing sources in tarball.
Fixed: Header X-UA-Compatible in HeaderSmall.tt/HeaderSmall.dtl not set (bug#10218).
Follow-up for bug#10209 - Submit button should get focused after node selection when in a single-selection environment.