The Oregonian has results here. It appears the measure has passed with more than 64% in support. This is a resounding victory... more later.

UPDATE: The final numbers are a little lower at 62/38 which is still greater than the margin M37 passed by three years ago, so this a complete turnaround and then some. The Bulletin reports that M49 passed in Deschutes, Jefferson, and Crook with 55%, 59%, and 52% respectively. Overall, the measure won in 22 counties and lost in 14. Election Maps are here.