Atos has opted for a rescue offer from Onepoint consortium that, together with offers from the French government and Alten to acquire parts of the business, lifts the cloud of uncertainty hanging over the ailing French IT services company. Onepoint’s proposal provides for a restructuring of Atos’ financial debt and the establishment of a sustainable capital structure, Atos said on Tuesday, the same day it announced that it had received a €270 million (about $290 million) offer from engineering consultant Alten to acquire Worldgrid, the part of Atos that provides consulting services to energy a…