update NewmarkTS.__call__() signature: remove conf argument
update NewmarkTS.__call__() signature: remove conf argument

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