Changed "const X ref"s to "X const ref"s

- Brought older code up to current convention (with the help of a Python script)

include/internal/catch_notimplemented_exception.h

@@ -16,7 +16,7 @@ namespace Catch {
     class NotImplementedException : public std::exception
     {
     public:
-        NotImplementedException( const SourceLineInfo& lineInfo );
+        NotImplementedException( SourceLineInfo const& lineInfo );
 
         virtual ~NotImplementedException() throw() {}