Optimize updates of issue's shared versions.
No need to update issues from the version's project.
Optimize issue updates when a version sharing changes.
Fixed: Subversion#latest_changesets ignores revision argument (#4360).
Display shared versions in project settings (#4357).
Fixes a test broken by r3127.
Fixes broken admin menu extension (#4351).
Fixes Project#shared_versions for descendants sharing (#465).
Translation updates * es (#4286) * sv (#4310)
Remove edit link on wiki page diff (#4346).
