updated date on island park

added various bridges, buildings, and locations for historical buildings to eugene, also fixed city node times/names

added gamma phi beta house

fixed start dates on some features in Tracy

added historic bridges and tunnels along western and southern pacific rails in the altamont pass area

added post office building and old post office node to Tracy

started adding Tracy, added several historic buildings, some streets, and the iconic palm tree. will add more when i use sanborn maps

added several historic buildings at the university of oregon, updated tags for my previous additions, added historic buildings in springfield, added main street bridge

added several historic buildings in downtown Eugene and Springfield, added city of springfield node

fixed start date on building details

added several historic buildings in downtown Eugene and in the University of Oregon, and updated tags on the Willamette River and other nearby bodies of water.