Change define section of Trace

src/artis/utils/Trace.hpp

@@ -20,8 +20,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef UTILS_TRACE
-#define UTILS_TRACE
+#ifndef ARTIS_UTILS_TRACE
+#define ARTIS_UTILS_TRACE
 
 #include <algorithm>
 #include <iterator>