JabRef 4.0.0

What's new in this version:

Changed:
- We add a textArea to see versionInfo in the About JabRef Dialog.#2942
- We turned the validation feature in the entry editor off by default, because of a bug in the library we have been using
- Added 'Filter All' and 'Filter None' buttons with corresponding functionality to Quality Check tool
- We increased the size of the keywords and file text areas in the entry editor
- When the entry that is currently shown in the entry editor is deleted externally, the editor is now closed automatically
- We added reordering of file and link entries in the General-Tab 3165, comment
- We added autcompletion for the crossref field on basis of the BibTeX-key. To accept such an autcompleted key as new entry-link, you have to press Enter two times, otherwise the field data is not stored in the library file.koppor
- We added drag and drop support for adding files directly in the General-Tab. The dragged files are currently only linked from their existing directory. For more advanced features use the Add files dialog
- We added the file description filed back to the list of files in the General-Tab
- Added an error dialog if the file is open in another process and cannot be renamed
- On Windows, the JabRef.exe executable can now be used to start JabRef from the command line. By default, no output is shown unless the new "-console" option is specified

Fixed:
- We re-added the "Normalize to BibTeX name format" context menu item
- We fixed a memory leak in the source tab of the entry editor
- We fixed a java bug where linux users could not enter accented characters in the entry editor and the search bar
- We fixed a regression introduced in v4.0-beta2: A file can be dropped to the entry preview to attach it to the entry
- We fixed an issue in the "Replace String" dialog (Ctrl+R where search and replace did not work for the bibtexkey field
- We fixed an issue in the entry editor where adding a term to a new protected terms list freezed JabRef completely
- We fixed an issue in the "Manage protected terms" dialog where an 'Open file' dialog instead of a 'Save file' dialog was shown when creating a new list
- We fixed an issue where unparseable dates of the FileAnnotations caused the FileAnnotationsTab to crash
- We fixed an issue where a new protected terms list was not available immediately after its addition
- We fixed an issue where an online file link could not be removed from an entry
- We fixed an issue where an online file link did not open the browser and created an error
- We fixed an issue where the arrow keys in the search bar did not work as expected
- We fixed wrong hotkey being displayed at "automatically file links" in the entry editor
- We fixed an issue where metadata syncing with local and shared database were unstable. It will also fix syncing groups and sub-groups in database
- We fixed an issue where renaming a linked file would fail silently if a file with the same name existed. Added support for overriding existing file at user discretion
- We fixed an issue where the "Remove group and subgroups" operation did not remove group information from entries in the group
- We fixed an issue where it was possible to leave the entry editor with an imbalance of braces
- Renaming files now truncates the filename to not exceed the limit of 255 chars
- We improved the handling of hyphens in names
- We fixed an issue where an entered file description was not written to the bib-file
- We improved the auto completion in the search bar
- We fixed renaming files which are not in the main directory

Removed:
- We removed support for LatexEditor, as it is not under active development