Fixes 1-3 per wmeyer

src/Mod/TechDraw/App/DrawViewPart.h

@@ -37,7 +37,7 @@
 
 namespace TechDraw {
 class DrawHatch;
-class WalkerEdge;
+struct WalkerEdge;
 }
 
 namespace TechDraw

src/Mod/TechDraw/App/EdgeWalker.h

@@ -52,8 +52,8 @@ typedef adjacency_list
     graph;
 
 struct WalkerEdge {
-    int v1;
-    int v2;
+    std::size_t v1;
+    std::size_t v2;
     int idx;
 };
 

src/Mod/TechDraw/Gui/Command.cpp

@@ -217,7 +217,7 @@ void CmdTechDrawNewPage::activated(int iMsg)
     Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
         .GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw");
 
-    std::string defaultDir = App::Application::getResourceDir() + "Mod/Drawing/Templates";
+    std::string defaultDir = App::Application::getResourceDir() + "Mod/TechDraw/Templates";
     QString templateDir = QString::fromStdString(hGrp->GetASCII("TemplateDir", defaultDir.c_str()));
     QString templateFileName = Gui::FileDialog::getOpenFileName(Gui::getMainWindow(),
                                                    QString::fromUtf8(QT_TR_NOOP("Select a Template File")),
@@ -225,9 +225,6 @@ void CmdTechDrawNewPage::activated(int iMsg)
                                                    QString::fromUtf8(QT_TR_NOOP("Template (*.svg *.dxf)")));
 
     if (templateFileName.isEmpty()) {
-        QMessageBox::critical(Gui::getMainWindow(),
-            QLatin1String("No template"),
-            QLatin1String("Must select a valid template file"));
         return;
     }