code cleanup, better comments and comments translation

eeschema/dialog_build_BOM.h

@@ -134,9 +134,9 @@ public:
                           bool aRunBrowser);
     void GenereListeOfItems(const wxString & FullFileName, bool aIncludeSubComponents );
     void CreateExportList(const wxString & FullFileName, bool aIncludeSubComponents);
-    int PrintComponentsListByRef( FILE * f, OBJ_CMP_TO_LIST * List, int NbItems,
+    int PrintComponentsListByRef( FILE * f, std::vector <OBJ_CMP_TO_LIST>& aList,
                             bool CompactForm, bool aIncludeSubComponents );
-    int PrintComponentsListByVal( FILE *f, OBJ_CMP_TO_LIST * List, int NbItems,
+    int PrintComponentsListByVal( FILE *f, std::vector <OBJ_CMP_TO_LIST>& aList,
                             bool aIncludeSubComponents);
     void PrintFieldData(FILE * f, SCH_COMPONENT * DrawLibItem, bool CompactForm = FALSE);
     void SavePreferences();

eeschema/libarch.cpp

@@ -38,7 +38,9 @@ bool LibArchive( wxWindow* frame, const wxString& ArchFullFileName )
 
     EDA_ScreenList s_list;
 
-    // examine all screens used and build the list of components found in lib
+    /* examine all screens (not scheets) used and build the list of components found in lib
+     * complex hierarchies are not a problem because we just want to know used components in librarires
+     */
     for( SCH_SCREEN* screen = s_list.GetFirst(); screen != NULL; screen = s_list.GetNext() )
     {
         for( SCH_ITEM* SchItem = screen->EEDrawList; SchItem; SchItem = SchItem->Next() )