SOCHI. Dec. 16 (Interfax) - Russian President Vladimir Putin told reporters on Friday that he had just talked with Ukrainian President Victor Yushchenko over the phone. "We have agreed that we will not politicize the gas issue," he said. Yushchenko said "this issue should not be politicized and I agree with him," Putin said. "There is the market and all our partners outside should be on equal terms. Business and economics is one thing and politics another," he said. "All sensible people in Ukraine understand that there were no problems with Crimea proceeding from Russia and there will be none...