- Improvements in the interface: the constraints with tables will be shown in human-readable form (suggested by GUEFFAZ REDA, and maybe other users in the past). g.theodoroy had useful suggestions and contributions, and wrote the code to divide the tables in the Mornings-Afternoons mode. - The detailed description of the teachers now include their 'not available times' constraints, in human-readable form (suggested by GUEFFAZ REDA). - Improvements in the interface: all the 'list constraints' dialogs now contain Up/Down buttons. - The user can view/save the file in a human-readable text form (it was DT's suggestion to allow saving the data as an HTML file). - The user can backup or restore the settings to/from an INI file (suggested in the past by Bobby Wise, and maybe by other users). - Minor interface bug fixes.