Global stocks rally as Buffett bites into Apple, oil eyes $50

By Jamie McGeever LONDON (Reuters) - World shares rose on Tuesday as technology giant Apple Inc's biggest rise in over two months and oil's march higher to near $50 a barrel boosted investor demand for riskier assets at the expense of safe-haven bonds. Europe's major stock markets rose as much as 1 percent before easing back, following similar gains in Asia after Wall Street had also chalked up a 1 percent rise on Monday. The rally lost some steam, however, and U.S. stock futures pared earlier g