[LyX/master] Use iostream instead of sstream and move it from header to cpp-source of LyX-Server

[Stephan Witt]

commit a80e0cacb909878f63b4f9ec3af0fad5a3b9ff4e
Author: Stephan Witt <sw...@lyx.org>
Date:   Sun Jun 12 13:03:06 2016 +0200

    Use iostream instead of sstream and move it from header to cpp-source of 
LyX-Server

diff --git a/src/Server.cpp b/src/Server.cpp
index 1a66682..c88ae82 100644
--- a/src/Server.cpp
+++ b/src/Server.cpp
@@ -58,6 +58,8 @@
 
 #include "support/bind.h"
 
+#include <iostream>
+
 #ifdef _WIN32
 #include <io.h>
 #include <QCoreApplication>
diff --git a/src/Server.h b/src/Server.h
index 2c1162d..1a46c89 100644
--- a/src/Server.h
+++ b/src/Server.h
@@ -17,7 +17,6 @@
 #include <boost/signals2/trackable.hpp>
 
 #include <vector>
-#include <sstream>
 
 #ifdef _WIN32
 #include <windows.h>