Dev/doc c standard (#1268)

* updated c++11 to c++17

* more about c++11 and updating readme

* updated documentation for receiver arguments and also making receiver constructor explicit

* minor fix for rxr err message

* fixed doc about gcc version

slsReceiverSoftware/include/sls/Receiver.h

@@ -18,7 +18,7 @@ class Receiver : private virtual slsDetectorDefs {
      * throws an exception in case of failure
      * @param port TCP/IP port number
      */
-    Receiver(uint16_t port = 1954);
+    explicit Receiver(uint16_t port = 1954);
 
     ~Receiver();
 

slsReceiverSoftware/src/CommandLineOptions.cpp

@@ -240,7 +240,7 @@ void CommandLineOptions::handleAppSpecificOption(int opt, const char *optarg,
 
     case 't':
         LOG(sls::logWARNING) << "Deprecated option '-t' and '--rx_tcport'. Use "
-                                "'p' or '--port' instead.";
+                                "'--p' or '--port' instead.";
         base.port = parsePort(optarg);
         break;
     }