VoyDirs versions:
2.01  20.12.03  Facility to type date strings added.
2.00   7.08.03  Typing finally corrected for missing characters
                Icon-bar icon option
                Menus can be attached to buttons.
                Setup file stored in Choices if possible
                Automatic restart if many buttons added.
                Automatic renaming of sprites to match !Vixen
1.18   3.04.01  Control of directory display format added
1.17  16.01.01  Optional colours on labels
1.16  11.11.00  Ability to change window/menu titles
                Option to quit on certain button-presses.
1.15   8.04.99  'Typing' facility added
                Memory usage made more efficient and so wimp-slot 
                  reduced.
1.14   23.9.98  Really fixed bug in r-h opening
                Adj-Click opens in centre of screen
1.13    8.9.98  Fixed bug in left/right opening
                Added 'position' opening
1.12   11.7.98  Menu access to Help file added 
                If only a single directory is listed, open immediately
                Preference menu access to SetUp file
1.11   4.12.97  Improved searching for highest article from large 
                  number entered
1.10  25.11.97  Template modified to allow window off-screen
1.09    2.8.97  Leave window at correct position in window pile on 
                  mode change
1.08   18.5.97  Altered method of only running one copy, 
                  to cope with !Larger
1.07   18.3.97  Adjuster buttons find last article better
                More robust reading of SetUp file
1.06   25.2.97  Adjuster buttons skip invalid article numbers
1.05   17.2.97  Adjust click quits VoyDirs
                [Articles] opens article finder 
1.04b  11.2.97  .... and at mouse pos'n
1.04    1.2.97  Option to open at top left/right at defined height.
1.03  13.11.96  Ability to load files into an editor
1.02  16.10.96  Multiple directories on single button 
1.01  13.10.96  Opening at mouse position 
                Number of buttons showing user-definable
1.00   4.10.96  First released version