diff -r 750eeb7230a1 -r c02818d7e29f editors/ProjectNodeEditor.py
--- a/editors/ProjectNodeEditor.py	Mon Aug 14 22:23:17 2017 +0300
+++ b/editors/ProjectNodeEditor.py	Mon Aug 14 22:30:41 2017 +0300
@@ -29,53 +29,53 @@
 from ConfTreeNodeEditor import ConfTreeNodeEditor
 
 class ProjectNodeEditor(ConfTreeNodeEditor):
-    
+
     SHOW_BASE_PARAMS = False
     ENABLE_REQUIRED = True
     CONFNODEEDITOR_TABS = [
         (_("Config variables"), "_create_VariablePanel"),
         (_("Project properties"), "_create_ProjectPropertiesPanel")]
-    
+
     def _create_VariablePanel(self, prnt):
         self.VariableEditorPanel = VariablePanel(prnt, self, self.Controler, "config", self.Debug)
         self.VariableEditorPanel.SetTagName(self.TagName)
-    
+
         return self.VariableEditorPanel
-    
+
     def _create_ProjectPropertiesPanel(self, prnt):
         self.ProjectProperties = ProjectPropertiesPanel(prnt, self.Controler, self.ParentWindow, self.ENABLE_REQUIRED)
-        
+
         return self.ProjectProperties
-    
+
     def __init__(self, parent, controler, window):
         configuration = controler.GetProjectMainConfigurationName()
         if configuration is not None:
             tagname = controler.ComputeConfigurationName(configuration)
         else:
             tagname = ""
-        
+
         ConfTreeNodeEditor.__init__(self, parent, controler, window, tagname)
-        
+
         buttons_sizer = self.GenerateMethodButtonSizer()
         self.MainSizer.InsertSizer(0, buttons_sizer, 0, border=5, flag=wx.ALL)
         self.MainSizer.Layout()
-        
+
         self.VariableEditor = self.VariableEditorPanel
 
     def GetTagName(self):
         return self.Controler.CTNName()
-    
+
     def SetTagName(self, tagname):
         self.TagName = tagname
         if self.VariableEditor is not None:
             self.VariableEditor.SetTagName(tagname)
-    
+
     def GetTitle(self):
         fullname = _(self.Controler.CTNName())
         if self.Controler.CTNTestModified():
             return "~%s~" % fullname
         return fullname
-    
+
     def RefreshView(self, variablepanel=True):
         ConfTreeNodeEditor.RefreshView(self)
         self.VariableEditorPanel.RefreshView()
@@ -83,12 +83,11 @@
 
     def GetBufferState(self):
         return self.Controler.GetBufferState()
-        
+
     def Undo(self):
         self.Controler.LoadPrevious()
         self.ParentWindow.CloseTabsWithoutModel()
-            
+
     def Redo(self):
         self.Controler.LoadNext()
         self.ParentWindow.CloseTabsWithoutModel()
-