friction_slip.py: dual mesh connectivity seems correct
friction_slip.py: dual mesh connectivity seems correct

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