fixed error in strictdoublevalidator concerning negative values

Gui/Base/StrictDoubleValidator.h

@@ -29,7 +29,7 @@ public:
 
 	QValidator::State validate(QString & input, int &pos) const
 	{
-		if (input.isEmpty() || input == ".") return Intermediate;
+		if (input.isEmpty() || input == "." || input == "-") return Intermediate;
 
 		if (QDoubleValidator::validate(input, pos) != Acceptable)
 			return Invalid;

Gui/DataView/FEMConditionSetupDialog.cpp

@@ -25,6 +25,7 @@
 #include "InitialCondition.h"
 #include "SourceTerm.h"
 
+
 FEMConditionSetupDialog::FEMConditionSetupDialog(const std::string &associated_geometry,
 												 const GeoLib::GEOTYPE type,
 												 const std::string &geo_name,