Merge branch 'release'
Revert "Revert "[MT] Fix some trees drawn even after the feature was destroyed""

This reverts commit 3fc6ebb0496b2e82f8e6ac027de2e496f7ee69b8.
Merge branch 'release'
buildbot: make UnitTests & ValidationTest's non-crashes non-fatale
minor in SmoothHeightMeshDrawer
I hate GML
buildbot: still mark UnitTest failures as red, but don't adopt it for the whole build
buildbot: fix "latest boost" job
ROAM: render a map border (WIP & FFP atm)
save a few MBs ram
typo in list.php (thanks CarRepairer)
try to fix --test-creg on mac buildslave
block impulses from applying to 'static' features (looks silly), minor crap
typo
HEADLESS loves jK (and GML wants apology)
fix #3612 (win32 log output eats CPU)
enable spring-headless & spring-dedicated for linux static builds

(needed for autohost owners)
typo
simplify release process

(wiki links now directly link to buildbot builds)
make Forb happy (fix #3636)