Coverity report fixes.

pcbnew/class_board_item.cpp

@@ -222,7 +222,7 @@ int BOARD_ITEM::getTrailingInt( wxString aStr )
 int BOARD_ITEM::getNextNumberInSequence( std::set<int> aSeq, bool aFillSequenceGaps)
 {
     // By default go to the end of the sequence
-    int candidate = *aSeq.end();
+    int candidate = *aSeq.rbegin();
 
     // Filling in gaps in pad numbering
     if( aFillSequenceGaps )

pcbnew/dialogs/dialog_create_array.cpp

@@ -272,6 +272,8 @@ void DIALOG_CREATE_ARRAY::OnOkClick( wxCommandEvent& event )
         // Only use settings if all values are good
         if( ok )
             newSettings = newGrid;
+        else
+            delete newGrid;
     }
     else if( page == m_circularPanel )
     {
@@ -301,6 +303,8 @@ void DIALOG_CREATE_ARRAY::OnOkClick( wxCommandEvent& event )
         // Only use settings if all values are good
         if( ok )
             newSettings = newCirc;
+        else
+            delete newCirc;
     }
 
     // If we got good settings, send them out and finish

pcbnew/tools/edit_tool.cpp

@@ -49,7 +49,8 @@
 
 EDIT_TOOL::EDIT_TOOL() :
     TOOL_INTERACTIVE( "pcbnew.InteractiveEdit" ), m_selectionTool( NULL ),
-    m_dragging( false ), m_editModules( false ), m_updateFlag( KIGFX::VIEW_ITEM::NONE )
+    m_dragging( false ), m_editModules( false ), m_undoInhibit( 0 ),
+    m_updateFlag( KIGFX::VIEW_ITEM::NONE )
 {
 }