silence SparseEfficiencyWarning in ScipyDirect.presolve()
silence SparseEfficiencyWarning in ScipyDirect.presolve()

BubuLK/sfepy,rc/sfepy,rc/sfepy,sfepy/sfepy,sfepy/sfepy,rc/sfepy,sfepy/sfepy,BubuLK/sfepy,BubuLK/sfepy