[gnote] Replace std::string by Glib::ustring in XmlConvert

[Aurimas Černius <aurimasc src gnome org>]

commit 91d8cc1374d748253a24f6253b134add73caf5df
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Fri Jan 27 22:56:46 2017 +0200

    Replace std::string by Glib::ustring in XmlConvert

 src/sharp/xmlconvert.cpp |    7 +++----
 src/sharp/xmlconvert.hpp |    7 ++++---
 2 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/src/sharp/xmlconvert.cpp b/src/sharp/xmlconvert.cpp
index bbad047..c412b1f 100644
--- a/src/sharp/xmlconvert.cpp
+++ b/src/sharp/xmlconvert.cpp
@@ -1,6 +1,7 @@
 /*
  * gnote
  *
+ * Copyright (C) 2017 Aurimas Cernius
  * Copyright (C) 2009 Hubert Figuiere
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -24,20 +25,18 @@
 
 
 
-#include <string>
-
 #include "sharp/xmlconvert.hpp"
 
 #include "debug.hpp"
 
 namespace sharp {
 
-  DateTime XmlConvert::to_date_time(const std::string & date)
+  DateTime XmlConvert::to_date_time(const Glib::ustring & date)
   {
     return DateTime::from_iso8601(date);
   }
 
-  std::string XmlConvert::to_string(const DateTime & date)
+  Glib::ustring XmlConvert::to_string(const DateTime & date)
   {
     return date.to_iso8601();
   }
diff --git a/src/sharp/xmlconvert.hpp b/src/sharp/xmlconvert.hpp
index 8216d79..336112c 100644
--- a/src/sharp/xmlconvert.hpp
+++ b/src/sharp/xmlconvert.hpp
@@ -1,6 +1,7 @@
 /*
  * gnote
  *
+ * Copyright (C) 2017 Aurimas Cernius
  * Copyright (C) 2009 Hubert Figuiere
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -28,7 +29,7 @@
 #ifndef __SHARP_DATETIME_HPP_
 #define __SHARP_DATETIME_HPP_ 
 
-#include <string>
+#include <glibmm/ustring.h>
 
 #include "sharp/datetime.hpp"
 
@@ -37,8 +38,8 @@ namespace sharp {
   class XmlConvert
   {
   public:
-    static DateTime to_date_time(const std::string & date);
-    static std::string to_string(const DateTime & date);
+    static DateTime to_date_time(const Glib::ustring & date);
+    static Glib::ustring to_string(const DateTime & date);
   };
 
 }