[thread/tests] - fixed: delete to avoid leak
[osx/zeroconf] - fixed: break after invalidating iterator
[mysql] - fixed: missing throw
[droid/loader] - fixed: file descriptor leak
[addonmanager] - fixed: don't crash on (too) early calls
Merge pull request #4716 from Memphiz/backportsnotspiff

Backports from nospiffs fork