[LyX/master] Fix missing includes after change 670efa8f646218f2a378f0cc614c4c37a9f6b89a

[Stephan Witt]

commit ac4cca6ed46754ef73109a9ab8eb1c714f111d49
Author: Stephan Witt <sw...@lyx.org>
Date:   Mon Jul 4 12:11:24 2016 +0200

    Fix missing includes after change 670efa8f646218f2a378f0cc614c4c37a9f6b89a
---
 src/VCBackend.cpp      |    1 +
 src/output_docbook.cpp |    2 ++
 2 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/VCBackend.cpp b/src/VCBackend.cpp
index fbe367b..2235c07 100644
--- a/src/VCBackend.cpp
+++ b/src/VCBackend.cpp
@@ -31,6 +31,7 @@
 #include "support/TempFile.h"
 
 #include <fstream>
+#include <sstream>
 
 using namespace std;
 using namespace lyx::support;
diff --git a/src/output_docbook.cpp b/src/output_docbook.cpp
index f453fc4..6ab9c9d 100644
--- a/src/output_docbook.cpp
+++ b/src/output_docbook.cpp
@@ -32,6 +32,8 @@
 #include "support/lstrings.h"
 #include "support/lyxalgo.h"
 
+#include <iostream>
+
 using namespace std;
 using namespace lyx::support;