Changlog:
- Added Dataset and Standard item types
- Allow quitting app via Ctrl-Q
- Improved direct saving of files on sites that check referrer
- Reintroduced text color tool in new note editor
- Added three additional colors to PDF reader and note editor
- Added option to use “Creator - Year - Title” or “Filename” instead of “Title - Creator - Year” for PDF tab titles
- Made toolbar accessible via keyboard
- Added additional retraction reason descriptions
- Bugfixes