fix .ori initialization in FEField.__init__()
fix .ori initialization in FEField.__init__()

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