TiledAttachmentListView subclasses AttachmentListView
Rename "ModalGalleryAttachmentListView" -> "AttachmentGalleryModal"
Remove debugger
Merge branch 'master' into streamWithAttachments

Conflicts:
	src/content/views/attachment-list-view.js
	src/content/views/gallery-attachment-list-view.js
	src/content/views/tiled-attachment-list-view.js
	src/views/list-view.js