Merge branch 'master' into docking

# Conflicts:
#	imgui.cpp
#	imgui.h

imgui_demo.cpp

@@ -396,6 +396,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
             ImGui::MenuItem("Documents", NULL, &show_app_documents);
             ImGui::EndMenu();
         }
+        //if (ImGui::MenuItem("MenuItem")) {} // You can also use MenuItem() inside a menu bar!
         if (ImGui::BeginMenu("Tools"))
         {
             ImGui::MenuItem("Metrics/Debugger", NULL, &show_app_metrics);