changed Variables.indx slices to have int type, not numpy.int32
changed Variables.indx slices to have int type, not numpy.int32

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