Remove C++11 language elements

see
  ad484e4c
and
  840d975a

src/io/inkscapestream.cpp

@@ -501,7 +501,7 @@ Writer &BasicWriter::writeChar(char ch)
  */ 
 Writer &BasicWriter::writeUString(Glib::ustring &str)
 {
-    for (auto it = str.begin(); it != str.end(); it++) {
+    for (Glib::ustring::iterator it = str.begin(); it != str.end(); it++) {
         put(*it);
     }
     return *this;

src/ui/interface.cpp

@@ -325,7 +325,7 @@ sp_ui_close_view(GtkWidget */*widget*/)
     INKSCAPE.get_all_desktops(desktops);
     if (desktops.size() == 1) {
         Glib::ustring templateUri = sp_file_default_template_uri();
-        SPDocument *doc = SPDocument::createNewDoc( templateUri.empty() ? nullptr : templateUri.c_str(), TRUE, true );
+        SPDocument *doc = SPDocument::createNewDoc( templateUri.empty() ? NULL : templateUri.c_str(), TRUE, true );
         // Set viewBox if it doesn't exist
         if (!doc->getRoot()->viewBox_set) {
             doc->setViewBox(Geom::Rect::from_xywh(0, 0, doc->getWidth().value(doc->getDisplayUnit()), doc->getHeight().value(doc->getDisplayUnit())));