Brent oil edges up, set for third straight weekly gain

By Libby George LONDON (Reuters) - Brent crude edged up on Friday, poised to mark a third consecutive week of price increases as air strikes in Yemen stoked concerns over the security of Middle East oil shipments. A softer U.S. dollar and strong economic indicators in Europe and Asia also lent support to oil prices despite OPEC crude production that is outstripping demand by nearly 2 million barrels per day. "It's been a pretty strong rally, so we're seeing a correction at the mom