Implemented auto-renaming of PDFs and other files based on the parent item's metadata. Format is customizable via 'attachmentRenameFormatString' pref, though options are currently rather limited. Default is '%c - %y - %t{50}', meaning "FirstCreator - 2007 - Title Truncated to 50 Characters"
Also:
- Removed |forceFileName| from Attachments.importFromDocument() -- I don't think it'll be necessary?
- Modified WebPageDump not to save HTML wrapper files around non-HTML documents