Is Zebra's recovery a sign of broader market trends? Here's how the asset-tracking veteran is setting up for future success amid many signs of a stronger economy.Data management and asset-tracking expert Zebra Technologies (ZBRA -0.50%) reported earnings on Tuesday morning. The results edged out Wall Street's estimates and management's guidance, lifting Zebra's stock to a fresh tow-year high.More importantly, this bellwether at the heart of America's [something] showed clear signs of an improving economy. C ...