[rset] Deprecate the 'encoded' argument to ResultSet.printable_rql() It's hardly used at all, and when used inside CubicWeb, it's only set as false. Better make sure that this function always returns a proper unicode string and let the caller handle conversion on its own.

# -*- coding: utf-8 -*-
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# contact %(author-web-site)s -- mailto:%(author-email)s
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"""%(distname)s schema"""