A few files snuck in with CRLF for the line endings. These make it hard
to look at diffs as every line appears to have changed. This commit
makes only line ending changes, so can be ignored
Normal SetValue() call would temporarily change the displayed
value, but as soon as the text widget receives focus again, the original
expression (not evaluated) is restored.
To avoid this, the original expression is cleared in the associated
NumericEvaluator object.
Seth Hillbrand
Jeff Young
jean-pierre charras
Maciej Suminski