(Portland, OR)  --  Residents of a Northeast Portland neighborhood evacuated due to a toxic fire are being allowed to return home.  Multnomah County authorities lifted their evacuation orders just before 5:00 last night.  Thousands of residents were forced from their homes Monday after a five-alarm fire at a scrap yard began kicking up toxic fumes.  The fire destroyed a duplex and a six-plex and killed 16 pet cats.