Version 1.1 of the editor is released.  This version includes the following changes:
-  Added Component Editor
-  Better enforcement of legal mod directory locations
-  If the file desired (facility.txt or components.txt currently) doesn't exist in the current mod folder, load them from the SE V data directory and then save the changes to the current mod directory
-  Bugfix: handle bad data input from files better (without throwing uncaught exceptions)
-  Bugfix: formula parser should not use regional settings as the data files are all in American/English
-  Bugfix: comments (lines beginning with //) in the data files will now be retained in a place as close to their original position as possible
Download is available at 
http://www.devnullsoftware.com/se5
I would recommend uninstalling previous versions first, but it should work even if you don't (though the src directory might be messed up as I reorganized the files in there a bit)