Merge pull request #20942 from DouglasSherk/1021175-callscreen-incorrect-wallpaper

Bug 1021175 - [Dialer] Fix incorrect wallpaper shown if the user changes it. r=etienne
Merge pull request #21131 from nullaus/bug1029609

bug 1029609 - Show spinner when loading new collections. r=kgrandon
Merge pull request #21137 from vingtetun/bug1026792.followup

Bug 1026792 - [Rocketbar] Rocketbar search should be cancelled when the ...
Merge pull request #21092 from KevinGrandon/bug_1031105_collection_filter_pinned

Bug 1031105 - [Collection] Edit mode can be triggered on unbookmarked eme apps if another e.me app is added twice to the top of that Smart Collection