+ split file extension from descriptive text of file format to avoid that invalid translation breaks file dialog

+ add method to make image view unclosable for user
+ fix possible crash in MeshAlgorithm::GetMeshBorder
+ fix possible crash in MeshAlgorithm::ConnectLines

src/Gui/SoAxisCrossKit.cpp

@@ -196,7 +196,7 @@ SoAxisCrossKit::createAxes()
    setPart("yAxis.shape", shape);
    setPart("zAxis.shape", shape);
 
-   // Place the axes ând heads
+   // Place the axes and heads
    set("yAxis.transform", "rotation 0 0 1 1.5707999");
    set("zAxis.transform", "rotation 0 1 0 -1.5707999");