MEXICO CITY (AP) — Tropical Storm Roslyn is gained strength off Mexico’s Pacific coast on Friday and forecasters expected it to be a hurricane when it makes a likely weekend landfall between the resorts of Puerto Vallarta and Mazatlan. The U.S. National Hurricane Center said Roslyn’s maximum sustained winds had increased to 65 mph (100 kph) early Friday. It was centered about 295 miles (475 kilometers) south-southeast of Cabo Corrientes — the poi…