Fixed in constraint viewer:
- changing statement between AND/OR now properly preserves their
children statements;
- statement values set to parameter name now display with "(arg)" trail,
to prevent conflicts with fixed statement values (AND/OR)
Merged
Fixed several issues with initial selection of CalculateCoverage dialog.
Merge branch 'dev-expected_value_constraining' of
https://github.com/testify-no/ecFeed.git into
dev-expected_value_constraining

Conflicts:
	ecfeed/src/com/testify/ecfeed/ui/dialogs/CalculateCoverageDialog.java