v0.10  07.10.2008 Handles 'And' rules.
                   List handling revamped again
                   Option to analyse defaulted mails 
 v0.09  21.2.2007  Fixed bug in error handling(!)
                   Coding of list handling tidied.
 v0.08  17.1.2007  List handling improved.
 v0.07  25.2.2006  Handles Lists
 v0.06  7.10.2004  Added ability to scan single Log file dragged onto icon.
 v0.05 30.09.2004  Optional progress window
                   Code tidied. 
 v0.04 09.03.2004  Headered mail reported better.
                   'CheckRules' independent of Analysis settings
 v0.03 23.01.2004  Menu access to Log directory and results
                   List redundant & duplicated Rules
                   'Header' rules added to display
                   Types of line written to Rules file separately configureable 
                   for each type.
 v0.02 14.12.2003  Number of rules configureable
                   Better checking of invalid inputs
 v0.01 16.11.2003  First released version