* stable-2.16:
ChangeIdHandler: Make assumption on number of query results explicit
ChangeIdHandler: Remove unnecessary 'final' modifiers
Update git submodules
AbstractQueryChangesTest: Add method to create change as private
AbstractQueryChangesTest: Fix comment in byPrivate
AbstractQueryChangesTest: Use overloaded newChange method where possible
AbstractQueryChangesTest: Extend testing of visibleto predicate
ChangeQueryBuilder: Rename status_open to statusOpen
ChangeQueryBuilder: Rename is_visible to isVisible
Extract duplicated code of {Ssh|Http}LogJsonLayout
Add option to log SSH events in JSON format
Remove duplicated constants storing key names of Ssh logs
Add option to log HTTP logging events in JSON format
Change-Id: Ib4de5b560a75ea85ca15581d73dde24baf83c1b4
ae1859319b