Revert "Bug 1047143 - close aps entering task-manager, exitToApp to open/restore"

This reverts commit 1d9a8cf867f281d7ab22402f246bac48d0980c33.
Bug 1056096 - Camera preview stream is blurry on some hardware
Merge pull request #22934 from eeejay/bug-1050381

Bug 1050381 - Support accessibility edge gestures. r=etienne
Merge pull request #23282 from KevinGrandon/bug_1057670_app_title_default

Bug 1057670 - Change title displayed in collapsed rocketbar within apps
Merge pull request #23283 from mcav/clock-12h

Bug 1035757 - [B2G][Clock] support 24 hour time format. r=millermedeiros
Bug 1046399 - (2.1-visual-refresh)[Ringtones] - Add New Tones
Bug 1058745 - Fix remote debugger prompt text. r=gandalf
Merge pull request #23311 from mozfreddyb/bug-1056882

Bug 1056882: disallow cross-origin imports
Bug 1033549: [CostControl] Add a per-app data usage list. r=salva
Bug 1047143 - close aps entering task-manager, exitToApp to open/restore

* Fix assumption that home event means homescreen opens in SoundManager,
* Remove appwillopen handler in AttentionScreen, applaunch will suffice
* Also listen for search app's requestforeground event
Bug 1054447 - [Browser] Browser Start Page Refinements ui-r=epang r=kgrandon
Merge pull request #23124 from KevinGrandon/bug_1054447_start_page_refinements

Bug 1054447 - [Browser] Browser Start Page Refinements
Merge pull request #23328 from jryans/blank-prompt

Bug 1058745 - Fix remote debugger prompt text
Revert "Merge pull request #23311 from mozfreddyb/bug-1056882" for Linter bustage

This reverts commit 503d3c4e4c779f31ccb768a8ccc2b505aff72e83, reversing
changes made to 14a2fef47142cd873df27a6c846fcd9f854a75e6.
Bug 1052488 - [Rocketbar] Implement opacity/color matching to statusbar r=kgrandon
Merge pull request #23335 from KevinGrandon/bug_1052488_rocketbar_background_polish

Bug 1052488 - [Rocketbar] Implement opacity/color matching to statusbar
Merge pull request #23125 from jimporter/ringtones-new-sounds

Bug 1046399 - (2.1-visual-refresh)[Ringtones] - Add New Tones
Merge pull request #23222 from 6a68/bug-998464-detect-offline-during-fxa-flow

Bug 998464 - Show error if network goes offline during FxA flow. r=borja...
Merge pull request #23332 from sfoster/close-apps-task-manager-bug-1047143

Bug 1047143 - close aps entering task-manager, exitToApp to open/restore. r=alive
Bug 964601 - [Settings] Add usb transter panel

- rename system storage to usb_storage
- have split switch
- have usb storage settings in storage_item