lewis hamilton led every lap after clinching pole position to seal his second victory of the campaign .
nico rosberg was second for mercedes with the ferrari of sebastian vettel completing the podium .
hamilton seals the 36th victory of his grand prix career to extend his lead at the top of the standings .
kimi raikkonen finished fourth for ferrari with the williams drivers of felipe massa and valtteri bottas 5th and 6th .
jenson button was involved in a collision with the lotus driver of pastor maldonado late on in the race .