fix SchurComplement.__init__()
fix SchurComplement.__init__()

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