• Added parsers for Excel and Oracle
  
• Removed Sybase parser because it didn't actually work
  
• Added ClassDBI, Diagram, GraphViz, HTML, POD, SQLite, Sybase producers
  
• Added Schema classes to represent schema as objects
  
• Removed "Raw" producer in favor of the Schema classes
  
• Removed "Validator" class as the Schema classes validate themselves
  
• Improved all existing parsers and producers, expanding them to
  handle foreign keys much better, produce better output, etc.
  
• Added sqlt-diagram.pl and sqlt-graphviz.pl as CLI frontends to the
  graphical producers
  
• Added sql_translator.cgi as a web-form frontend to graphical producers
  
• Expanded test suite