Begins adaptation to use the .NET framework v2.0 instead of 4.0
Works now on AMOS 20 (targeting .NET 3.5)
Improves layout of factors and variables.
Removes text field for data file input.
Requires that a user specify a data file.
Adds cancel button to dialog.
Added line continuation characters to improve back-compatibility.
Attempts to fix an issue with error positioning.