TODO for Dataimport
===================

 - Remove the old code
 - Allow the user to specify ranges of rows to import
 - Allow specifying formats for import
 - Help pages
 
Done
====

 - [2007-06-09] Allow the user to select the sheet (XLS)
 - [2007-06-09] Allow the user to select the seperator (CSV)
 - [2007-06-10] Invalidate column selection after checking the "header" box