Bug 1093874 - Create new test cases for loading a mix of valid/invalid image files into Gallery

This test tests the loading of various different image file types, and also checks that invalid image files are not displayed in the thumbnail view, and does not crash the Gallery app

referencing the image author
Bug 1109240 - remove use of unsolicited callbacks from Camera app
Bug 1108965 - Call Set constructor with new.
Merge pull request #26684 from arai-a/bug1108965

Bug 1108965 - Call Set constructor with new in input_layout.js, r=timdream
Merge pull request #26681 from mikeaich/bug1109240

Bug 1109240 - remove use of unsolicited callbacks from Camera app, r=justindarc
Bug 1107040 - [BB] Improve buttons on object menu
Merge pull request #25861 from npark-mozilla/1093874_2ndAttempt

Bug 1093874 2nd attempt
Merge pull request #26602 from pacorampas/808660-object-menu

Bug 1107040 - [BB] Improve buttons on object menu r=arnau
Bug 1105850 - Highlight the group being hovered over in edit mode. r=crdlc
Bug 1105850 - Test that hovered groups are highlighted. r=crdlc

Make sure that when hovering an item over a group, it gets highlighted.
Revert "Bug 1109240 - remove use of unsolicited callbacks from Camera app"

This reverts commit e6be133f4c7719bcbd224496f85fadb6bdc30803.
Merge pull request #26676 from Cwiiis/bug1105850-highlight-hovered-group

Bug 1105850 - Highlight the group being hovered over in edit mode. r=crdlc