allow deferred setup of ProblemConf - add setup argument to .__init__()
allow deferred setup of ProblemConf - add setup argument to .__init__()

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