use _cmp() in test_consistent_sets() to fix float comparison
use _cmp() in test_consistent_sets() to fix float comparison

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