new sfepy/mechanics/membranes.py: new describe_deformation()
new sfepy/mechanics/membranes.py: new describe_deformation()

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