Warnings on Zope start

[icemac]

When using the latest release of this package Zope issues the following warning when starting:

2017-10-24 11:24:46 - WARNI [Init] Class Products.PythonScripts.PythonScript.PythonScript has a security declaration for nonexistent method 'manage_historyCopy'
2017-10-24 11:24:46 - WARNI [Init] Class Products.PythonScripts.PythonScript.PythonScript has a security declaration for nonexistent method 'manage_afterHistoryCopy'
2017-10-24 11:24:46 - WARNI [Init] Class Products.PythonScripts.PythonScript.PythonScript has a security declaration for nonexistent method 'manage_beforeHistoryCopy'
2017-10-24 11:24:46 - WARNI [Init] Class Products.PythonScripts.PythonScript.PythonScript has a security declaration for nonexistent method 'manage_historyCopy'
2017-10-24 11:24:46 - WARNI [Init] Class Products.PythonScripts.PythonScript.PythonScript has a security declaration for nonexistent method 'manage_afterHistoryCopy'
2017-10-24 11:24:46 - WARNI [Init] Class Products.PythonScripts.PythonScript.PythonScript has a security declaration for nonexistent method 'manage_beforeHistoryCopy'

Would it be a good idea to delete these declarations to get rid of the warnings?

[icemac]

See zopefoundation/Zope#219 for a fix of similar warnings.