Bug 930364 - standard text message sound is jarring
Bug 971512 - [System] Instantiable layout manager
Merge pull request #17578 from Rik/sms-sound-930364

Bug 930364 - standard text message sound is jarring r=julienw
Merge pull request #17641 from rexboy7/bug-971512-1.4

Bug 971512 - [System] Instantiable layout manager
Bug 971072 - [VDR] [BB] update modals with new Buttons BB
Merge pull request #17652 from rnowm/VR-modals

Bug 971072 - [VDR] [BB] update modals with new Buttons BB r=pivanov
Bug 964653 - (system-dialog) [Window Management] Implement System Dialog Window