update laplace_time_ebcs.py example for current TS solvers
update laplace_time_ebcs.py example for current TS solvers

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