Cox News Service: The solar industry, whose future seemed so bright just a few months ago, suddenly looks like it’s headed for a shakeout. Falling oil prices, supply issues and the evaporation of financing for solar projects have moved in like clouds over the industry, just as it was poised for unprecedented growth. Even as new solar factories opened in places such as Austin, Texas, and Atlanta in recent weeks, several big solar companies in China and Canada warned that they’ll pull back on …