Bug 943337 - Merge all 2 kill cards view tests into one.
Bug 938208 - Write test to enable Power Save mode
Merge pull request #14312 from AlinT/bug_938203_1_2

Bug 938208 - Write test to enable Power Save mode
Bug 943183 - [Messages] the bad recipient markers should not be absolutely positioned to a non-scrolled ancestor r=schung

* Add "position: relative" for the absolutely positioned marker's nearest
  ancestor.
Merge pull request #14210 from AlinT/bug_943337_v1.2

Bug 943337 - Merge all 2 kill cards view tests into one.
Merge pull request #14251 from dominickuo/bug-943797

Bug 943797 - [music] Use hash to decide the default album art, r=jimporter(cherry picked from commit e01827ec7b9bc0426e0f5d216123b9247413db4e)
Bug 944718 - [Cost Control] Broken access to usage widget from utility tray
Merge pull request #14390 from gitmai/bug-944718-Broken-usage-widget_v1.2

Bug 944718 - [Cost Control] Broken access to usage widget from utility t...
r=jmcf
Merge pull request #13939 from flodolo/bug941901

Bug 941901 - [settings] Use correct entity name for Cell broadcast r=crh0716(cherry picked from commit e42fdf6a6b77038b0a2cd46b9193378d84794c20)

Conflicts:
	apps/settings/elements/messaging.html