Bug 910594 Add ability to require JSON files
Bug 889203 - Make Sidebar id optional
Merge pull request #1244 from jsantell/require-json

Bug 910594 Add ability to require JSON files, r=@erikvold
Merge pull request #1254 from erikvold/889203v2

Bug 889203 - Make Sidebar id optional r=@gozala
Bug 903002 - Display properly the widget with panel attached, in Australis