update Newton to return number of iterations in status
update Newton to return number of iterations in status

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