- Using standard javax.swing.JOptionPane(s) in case of errors/warnings because of strange behavior of custom dialogs with long error messages

- Check if the user tries to set keys with value < 1

- Updated link to WhereIsNow registration page

- Added support for the two new "reserved types" introduced in WhereIsNow

- Fixed bug when loading unsupported (or non-existent) files

- Fixed very bad bug about reserved documents

- Added version number to the about window

- Code cleaning

TO DO :

- Support to Mac OSX coming in the next releases