Remove using std::XXX from headers

This is a bad practice to have using in headers because it pollutes the
namespace of any user of that header.
diff --git a/remote-processor/AnswerMessage.cpp b/remote-processor/AnswerMessage.cpp
index 30f2c4f..341917e 100644
--- a/remote-processor/AnswerMessage.cpp
+++ b/remote-processor/AnswerMessage.cpp
@@ -33,6 +33,8 @@
 
 #define base CMessage
 
+using std::string;
+
 CAnswerMessage::CAnswerMessage(const string& strAnswer, bool bSuccess) : base(bSuccess ? ESuccessAnswer : EFailureAnswer), _strAnswer(strAnswer)
 {
 }
diff --git a/remote-processor/AnswerMessage.h b/remote-processor/AnswerMessage.h
index 9b865e8..3f50e7e 100644
--- a/remote-processor/AnswerMessage.h
+++ b/remote-processor/AnswerMessage.h
@@ -34,11 +34,11 @@
 class CAnswerMessage : public CMessage
 {
 public:
-    CAnswerMessage(const string& strAnswer, bool bSuccess);
+    CAnswerMessage(const std::string& strAnswer, bool bSuccess);
     CAnswerMessage();
 
     // Answer
-    const string& getAnswer() const;
+    const std::string& getAnswer() const;
 
     // Status
     bool success() const;
@@ -50,9 +50,9 @@
     // Size
     virtual uint32_t getDataSize() const;
     // Answer
-    void setAnswer(const string& strAnswer);
+    void setAnswer(const std::string& strAnswer);
 
     // Answer
-    string _strAnswer;
+    std::string _strAnswer;
 };
 
diff --git a/remote-processor/ConnectionSocket.cpp b/remote-processor/ConnectionSocket.cpp
index 41edeaa..5b5de45 100644
--- a/remote-processor/ConnectionSocket.cpp
+++ b/remote-processor/ConnectionSocket.cpp
@@ -37,6 +37,8 @@
 
 #define base CSocket
 
+using std::string;
+
 CConnectionSocket::CConnectionSocket()
 {
 }
@@ -63,7 +65,7 @@
     // Connect
     if (::connect(getFd(), (struct sockaddr *)&server_addr, sizeof(struct sockaddr))) {
 
-        ostringstream oss;
+	std::ostringstream oss;
         oss << "CConnectionSocket::connect::connect on port: " << uiPort;
         perror(oss.str().c_str());
 
diff --git a/remote-processor/ConnectionSocket.h b/remote-processor/ConnectionSocket.h
index c90fc66..707579b 100644
--- a/remote-processor/ConnectionSocket.h
+++ b/remote-processor/ConnectionSocket.h
@@ -33,14 +33,12 @@
 
 #include <string>
 
-using namespace std;
-
 class CConnectionSocket : public CSocket
 {
 public:
     CConnectionSocket();
 
     // Connection
-    bool connect(const string& strRemote, uint16_t uiPort, string& strError);
+    bool connect(const std::string& strRemote, uint16_t uiPort, std::string& strError);
 };
 
diff --git a/remote-processor/ListeningSocket.cpp b/remote-processor/ListeningSocket.cpp
index 7d6f9e8..1677d71 100644
--- a/remote-processor/ListeningSocket.cpp
+++ b/remote-processor/ListeningSocket.cpp
@@ -42,6 +42,8 @@
 
 #define base CSocket
 
+using std::string;
+
 CListeningSocket::CListeningSocket()
 {
     int iOption = true;
@@ -60,7 +62,7 @@
     // Bind
     if (bind(getFd(), (struct sockaddr*)&server_addr, sizeof(struct sockaddr)) == -1) {
 
-        ostringstream oss;
+	std::ostringstream oss;
         oss << "CListeningSocket::listen::bind port " << uiPort;
         perror(oss.str().c_str());
 
@@ -69,7 +71,7 @@
 
     if (::listen(getFd(), 5) == -1) {
 
-        ostringstream oss;
+	std::ostringstream oss;
         oss << "CListeningSocket::listen::bind port " << uiPort;
         perror(oss.str().c_str());
 
diff --git a/remote-processor/Message.cpp b/remote-processor/Message.cpp
index 8591847..9df038c 100644
--- a/remote-processor/Message.cpp
+++ b/remote-processor/Message.cpp
@@ -35,6 +35,8 @@
 #include <assert.h>
 #include <errno.h>
 
+using std::string;
+
 CMessage::CMessage(uint8_t ucMsgId) : _ucMsgId(ucMsgId), _pucData(NULL), _uiDataSize(0), _uiIndex(0)
 {
 }
diff --git a/remote-processor/Message.h b/remote-processor/Message.h
index feafc83..2e52c09 100644
--- a/remote-processor/Message.h
+++ b/remote-processor/Message.h
@@ -32,8 +32,6 @@
 #include <stdint.h>
 #include <string>
 
-using namespace std;
-
 class CSocket;
 
 class CMessage
@@ -69,9 +67,9 @@
     // Data
     void writeData(const void* pvData, uint32_t uiSize);
     void readData(void* pvData, uint32_t uiSize);
-    void writeString(const string& strData);
-    void readString(string& strData);
-    uint32_t getStringSize(const string& strData) const;
+    void writeString(const std::string& strData);
+    void readString(std::string& strData);
+    uint32_t getStringSize(const std::string& strData) const;
     // Remaining data size
     uint32_t getRemainingDataSize() const;
 private:
diff --git a/remote-processor/RemoteProcessorServer.cpp b/remote-processor/RemoteProcessorServer.cpp
index 8c66109..dff935b 100644
--- a/remote-processor/RemoteProcessorServer.cpp
+++ b/remote-processor/RemoteProcessorServer.cpp
@@ -39,6 +39,8 @@
 #include "AnswerMessage.h"
 #include "RemoteCommandHandler.h"
 
+using std::string;
+
 CRemoteProcessorServer::CRemoteProcessorServer(uint16_t uiPort, IRemoteCommandHandler* pCommandHandler) :
     _uiPort(uiPort), _pCommandHandler(pCommandHandler), _bIsStarted(false), _pListeningSocket(NULL), _ulThreadId(0)
 {
@@ -148,7 +150,7 @@
 // New connection
 void CRemoteProcessorServer::handleNewConnection()
 {
-    const auto_ptr<CSocket> clientSocket(_pListeningSocket->accept());
+    const std::auto_ptr<CSocket> clientSocket(_pListeningSocket->accept());
 
     if (clientSocket.get() == NULL) {
 
@@ -172,7 +174,7 @@
 
         switch (res) {
         case CRequestMessage::error:
-            cout << "Error while receiving message: " << strError << endl;
+            std::cout << "Error while receiving message: " << strError << std::endl;
             // fall through
         case CRequestMessage::peerDisconnected:
             // Consider peer disconnection as normal, no log
@@ -209,7 +211,7 @@
             // Peer should not disconnect while waiting for an answer
             // Fall through to log the error and bail out
         case CRequestMessage::error:
-            cout << "Error while receiving message: " << strError << endl;
+            std::cout << "Error while receiving message: " << strError << std::endl;
             return; // Bail out
         case CRequestMessage::success:
             break; // No error, continue
diff --git a/remote-processor/RemoteProcessorServerInterface.h b/remote-processor/RemoteProcessorServerInterface.h
index 9b1b0a5..19a799c 100644
--- a/remote-processor/RemoteProcessorServerInterface.h
+++ b/remote-processor/RemoteProcessorServerInterface.h
@@ -31,8 +31,6 @@
 
 #include "RequestMessage.h"
 
-using namespace std;
-
 class IRemoteProcessorServerInterface
 {
 public:
diff --git a/remote-processor/RequestMessage.cpp b/remote-processor/RequestMessage.cpp
index cc48cc3..32b25f6 100644
--- a/remote-processor/RequestMessage.cpp
+++ b/remote-processor/RequestMessage.cpp
@@ -35,6 +35,8 @@
 
 #define base CMessage
 
+using std::string;
+
 const char* const CRequestMessage::gacDelimiters = " \t\n\v\f\r";
 
 CRequestMessage::CRequestMessage(const string& strCommand) : base(ECommandRequest), _strCommand(strCommand)
diff --git a/remote-processor/RequestMessage.h b/remote-processor/RequestMessage.h
index 7104e36..17f433b 100644
--- a/remote-processor/RequestMessage.h
+++ b/remote-processor/RequestMessage.h
@@ -32,22 +32,23 @@
 #include "Message.h"
 #include "RemoteCommand.h"
 #include <vector>
+#include <string>
 
 class CRequestMessage : public CMessage, public IRemoteCommand
 {
 public:
-    CRequestMessage(const string& strCommand);
+    CRequestMessage(const std::string& strCommand);
     CRequestMessage();
 
     // Command Name
-    void setCommand(const string& strCommand);
-    virtual const string& getCommand() const;
+    void setCommand(const std::string& strCommand);
+    virtual const std::string& getCommand() const;
 
     // Arguments
-    virtual void addArgument(const string& strArgument);
+    virtual void addArgument(const std::string& strArgument);
     virtual uint32_t getArgumentCount() const;
-    virtual const string& getArgument(uint32_t uiArgument) const;
-    virtual const string packArguments(uint32_t uiStartArgument, uint32_t uiNbArguments) const;
+    virtual const std::string& getArgument(uint32_t uiArgument) const;
+    virtual const std::string packArguments(uint32_t uiStartArgument, uint32_t uiNbArguments) const;
 
 private:
 
@@ -64,12 +65,12 @@
     virtual void collectReceivedData();
     // Size
     virtual uint32_t getDataSize() const;
-    // Trim input string
-    static string trim(const string& strToTrim);
+    // Trim input std::string
+    static std::string trim(const std::string& strToTrim);
 
     // Command
-    string _strCommand;
+    std::string _strCommand;
     // Arguments
-    vector<string> _argumentVector;
+    std::vector<std::string> _argumentVector;
 };
 
diff --git a/remote-processor/Socket.h b/remote-processor/Socket.h
index e8d360f..00bd8bc 100644
--- a/remote-processor/Socket.h
+++ b/remote-processor/Socket.h
@@ -32,8 +32,6 @@
 #include <string>
 #include <stdint.h>
 
-using namespace std;
-
 struct sockaddr_in;
 struct in_addr;