Issue #2030605 by tim.plunkett, mr.baileys, webwarrior, Wim Leers | plopesc: Expand Editor with methods.
Issue #1932074 follow-up by andypost: Remove duplicated #type declaration.
Issue #2216531 by Jalandhar, Mile23: Improve unit test annotation for SimpleTest.
Issue #1832870 by -enzo-, YesCT, EllaTheHarpy, Pinolo, dlu, seranooo5, ivanchaer, mauzeh, filijonka, robertdbailey | maryedith: Only show source translation column if there are 2 or more source languages (more than n/a and the original language).