Corrected some comments

src/app/FTPServer.h

@@ -52,9 +52,19 @@ class FTPServer : public TCPServer<T>
 
     virtual ~FTPServer()
     {
+      _dataServer.stop();
       free(_login); free(_password);
     }
 
+    virtual void stop()
+    {
+      if(TCPServer<T>::_serverStarted)
+      {
+        _dataServer.stop();
+        TCPServer<T>::stop();
+      }
+    }
+
   protected:
     virtual T* createNewClient(WiFiClient wc)
     {

src/app/TCPClient.h

@@ -22,8 +22,8 @@ class TCPClient
   
     WiFiClient _client;
     uint8_t *_data; //The actual data
-    uint16_t _dataSize; //The logic size of the data contained
-    uint16_t _dataBufferSize; //The physic size of the buffer
+    uint16_t _dataSize; //The logical size of the data contained
+    uint16_t _dataBufferSize; //The physical size of the buffer
     boolean _newDataAvailable;
     uint8_t _id;