update doc/conf.py for moved Config
update doc/conf.py for moved Config

RexFuzzle/sfepy,rc/sfepy,sfepy/sfepy,lokik/sfepy,BubuLK/sfepy,rc/sfepy,vlukes/sfepy,lokik/sfepy,lokik/sfepy,RexFuzzle/sfepy,BubuLK/sfepy,vlukes/sfepy,sfepy/sfepy,vlukes/sfepy,rc/sfepy,RexFuzzle/sfepy,lokik/sfepy,BubuLK/sfepy,RexFuzzle/sfepy,sfepy/sfepy