No more using namespace std

src/neuralnet.cpp

@@ -11,15 +11,18 @@
  * this program. If not, see <http://www.gnu.org/licenses/>.                                      *
  **************************************************************************************************/
 
-#include <iostream>
 #include <fstream>
 #include <sstream>
 
-using namespace std;
-
 #include "neural++.hpp"
 #include "Markup.h"
 
+using std::vector;
+using std::string;
+using std::ifstream;
+using std::ofstream;
+using std::stringstream;
+
 namespace neuralpp {
 	double __actv(double prop)  {
 		return prop;