'Clear and rebuild the HelpFiles section in self.changedItems'

def UpdateUserHelpChangedItems(self):

    self.changedItems['main']['HelpFiles'] = {}
    for num in range(1, (len(self.userHelpList) + 1)):
        self.AddChangedItem('main', 'HelpFiles', str(num), ';'.join(self.userHelpList[(num - 1)][:2]))
