fix assembleContactResidualAndStiffness() for exact matrix values length guess
fix assembleContactResidualAndStiffness() for exact matrix values length guess

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