Improve IDE schema load
The IDE schema load is better now that multi-select has been added, but I think the distinction between loading one file, multiple files and MUL files doesn't need to be an explicit choice, it could be inferred from the files selected by the user.
If the user selects multiple files in the File Open dialog then it can be assumed that they want to load multiple files, if they select a MUL file then they want to load a MUL file.
John Munro
