Adds setting_default_projects_tracker_ids string to locales (#13175, #13272).
Merged r11474 from trunk (#10277).
Merged r11471 from trunk (#5329).
Merged r11473 from trunk (#3676).
Merged r11521 from trunk (#3371).
Merged r11472 from trunk (#3107).
Merged r11560 from trunk to 2.3-stable (#13399)
Korean translation changed by Lucas Yang.
Korean translation changed by Lucas Yang (#13399)
Merged r11554 from trunk to 2.3-stable (#13391)
Czech translation for 2.3-stable updated by Karel Pičman.
Merged r11553 from trunk to 2.3-stable (#13398, #13391)
Czech translation for 2.2-stable updated by Karel Pičman.
