Two options currently only available via about:config, combineChildItems and includeAllChildItems (which really means "Include All Child Items If Only Parent Items Are Selected")
Other changes:
- Moved Zotero.Utilities.cleanString() functionality to ZU.trimInternal() and created a regular trim() too that doesn't consolidate internal whitespace.
- Removed Zotero.getAll(), replaced with Zotero.Collection.getChildItems() and a new onlyTopLevel flag to Zotero.Items.getAll(). Also removed unused Zotero.getAttachments.
- Fixed XML parsing error during report generation when a long URL contained a trailing space