Add stderr output =))

src/logger.cpp

@@ -48,6 +48,7 @@ class LoggerClass {
             char str[20];
             strftime(str, sizeof(str), "%T", now);
             std::string logLevelStr;
+
             switch (logLevel) {
                 case DEBUG: logLevelStr = std::string("DEBUG"); break;
                 case INFO: logLevelStr = std::string("INFO"); break;
@@ -57,13 +58,21 @@ class LoggerClass {
                 default: logLevelStr = std::string("UNKNOWN"); break;
             };
             line = std::string(str) + " - [" + logLevelStr + "] " + message + "\n";
+            if (logLevel > 2) {
                 print(line);
+            }
+            else {
+                printErr(line);
+            }
             addToFile(line);
         }
 
         void print(const std::string& message) {
             std::cout << message;
         }
+        void printErr(const std::string& message) {
+            std::cerr << message;
+        }
         
         void addToFile(const std::string& message) {
             if (!openLogFileFailed) {