Minor fixes (check for net codes size for ratsnest, cursor coordinates are not...

Minor fixes (check for net codes size for ratsnest, cursor coordinates are not always shown as if the cursor was snapped).

common/drawframe.cpp

@@ -1023,7 +1023,6 @@ wxPoint EDA_DRAW_FRAME::GetCrossHairPosition( bool aInvertY ) const
     if( IsGalCanvasActive() )
     {
         VECTOR2I cursor = GetGalCanvas()->GetViewControls()->GetCursorPosition();
-        cursor = GetGalCanvas()->GetGAL()->GetGridPoint( cursor );
 
         return wxPoint( cursor.x, cursor.y );
     }

include/wxPcbStruct.h

@@ -216,8 +216,6 @@ public:
     bool m_show_microwave_tools;
     bool m_show_layer_manager_tools;
 
-
-public:
     PCB_EDIT_FRAME( wxWindow* father, const wxString& title,
                     const wxPoint& pos, const wxSize& size,
                     long style = KICAD_DEFAULT_DRAWFRAME_STYLE );

pcbnew/ratsnest_data.cpp

@@ -1024,7 +1024,7 @@ void RN_DATA::updateNet( int aNetCode )
 {
     assert( aNetCode < (int) m_nets.size() );
 
-    if( aNetCode < 1 )
+    if( aNetCode < 1 || aNetCode > m_nets.size() )
         return;
 
     m_nets[aNetCode].ClearSimple();