Bug 1016368 - STK Dialogs new layout, r=vingtetun
Bug 973452 - [settings] refactor Application storage panel with AMD pattern
- put visibilityChange in onBeforeShow/Hide
- clean DeviceStorageHelper
- use observable to render sizes in panel
- turn app_storage to singleton object and moved to modules/
- panel & app_storage test
- use dom request mock for app_storage test
Merge pull request #19239 from gasolin/issue-973452

Bug 973452 - [settings] refactor Application storage panel with AMD patt..., r=arthur
Merge pull request #19760 from frsela/STK/Bug1016368

Bug 1016368 - STK Dialogs new layout, r=vingtetun
Bug 1023124 - [Flame][Keyboard] - Missing images