Remove negation from PCB_BASE_FRAME::PlaceModule() parameter

Negated parameters make code confusing. Now the parameter
description is accurate.

include/pcb_base_frame.h

@@ -333,9 +333,9 @@ public:
      * @param aModule A MODULE object point of the module to be placed.
      * @param aDC A wxDC object point of the device context to draw \a aModule on
      *            or  NULL if no display screen need updated.
-     * @param aDoNotRecreateRatsnest A bool true redraws the module rats nest.
+     * @param aRecreateRatsnest A bool true redraws the module rats nest.
      */
-    void PlaceModule( MODULE* aModule, wxDC* aDC, bool aDoNotRecreateRatsnest = false );
+    void PlaceModule( MODULE* aModule, wxDC* aDC, bool aRecreateRatsnest = true );
 
     // module texts
     void RotateTextModule( TEXTE_MODULE* Text, wxDC* DC );

pcbnew/dialogs/dialog_exchange_footprints.cpp

@@ -467,7 +467,7 @@ void PCB_EDIT_FRAME::Exchange_Module( MODULE* aOldModule,
 
     /* place module without ratsnest refresh: this will be made later
      * when all modules are on board */
-    PlaceModule( aNewModule, NULL, true );
+    PlaceModule( aNewModule, NULL, false );
 
     // Copy full placement and pad net names (when possible)
     // but not local settings like clearances (use library values)

pcbnew/pcb_footprint_edit_utils.cpp

@@ -349,7 +349,7 @@ void PCB_EDIT_FRAME::Change_Side_Module( MODULE* Module, wxDC* DC )
 }
 
 
-void PCB_BASE_FRAME::PlaceModule( MODULE* aModule, wxDC* aDC, bool aDoNotRecreateRatsnest )
+void PCB_BASE_FRAME::PlaceModule( MODULE* aModule, wxDC* aDC, bool aRecreateRatsnest )
 {
     wxPoint newpos;
 
@@ -413,7 +413,7 @@ void PCB_BASE_FRAME::PlaceModule( MODULE* aModule, wxDC* aDC, bool aDoNotRecreat
 
     m_Pcb->GetConnectivity()->Update( aModule );
 
-    if( GetBoard()->IsElementVisible( LAYER_RATSNEST ) && !aDoNotRecreateRatsnest )
+    if( GetBoard()->IsElementVisible( LAYER_RATSNEST ) && aRecreateRatsnest )
         Compile_Ratsnest( aDC, true );
 
     if( aDC )