fix AutoFallbackSolver.__new__() for dict conf
fix AutoFallbackSolver.__new__() for dict conf

sfepy/sfepy,sfepy/sfepy,BubuLK/sfepy,rc/sfepy,rc/sfepy,vlukes/sfepy,vlukes/sfepy,BubuLK/sfepy,sfepy/sfepy,rc/sfepy,vlukes/sfepy,BubuLK/sfepy