Fix a bug

Trying to fix #22
Open client with QProcess::Text for proper newline character(s)
On Raspbian, the isBusy() function will always return false, even the serial port is actually connected.

module/lf.cpp

@@ -70,10 +70,10 @@ void LF::getConfig()
     result = util->execCMDWithOutput("hw status", 400); // not all output from "hw status will be processed".
     result = result.right(result.length() - result.indexOf("LF Sampling config"));
     offset = result.indexOf("samples to skip");
-    offset = result.indexOf("\r\n", offset);
+    offset = result.indexOf("\n", offset);
     result = result.mid(0, offset + 2);
     qDebug() << "LF CONFIG GET\n" << result;
-    resultList = result.split("\r\n");
+    resultList = result.split("\n");
     for(int i = 0; i < resultList.length(); i++)
     {
         for(int j = 0; j < symbolList.length(); j++)

module/mifare.cpp

@@ -794,7 +794,7 @@ void Mifare::setParameterC()
         QMessageBox::information(parent, tr("Info"), tr("Failed to read card."));
     else
     {
-        result.replace("\r\n", "");
+        result.replace("\n", "");
         result.replace(QRegularExpression("\\[.\\]"), "");
         result.replace("UID", "");
         result.replace("ATQA", "");
@@ -1071,7 +1071,7 @@ bool Mifare::data_loadDataFile(const QString& filename)
         else
         {
             QString tmp = buff.left(cardType.block_size * 34);
-            QStringList tmpList = tmp.split("\r\n");
+            QStringList tmpList = tmp.split("\n");
             for(int i = 0; i < cardType.block_size; i++)
             {
                 dataList->replace(i, tmpList[i].toUpper());
@@ -1174,7 +1174,7 @@ bool Mifare::data_saveDataFile(const QString& filename, bool isBin)
             for(int i = 0; i < cardType.block_size; i++)
             {
                 buff += dataList->at(i);
-                buff += "\r\n";
+                buff += "\n";
             }
         }
         bool ret = file.write(buff) != -1;