updated ICO to use a new layer with Canada's range weighted COSEWIC extinction risk status values. Note that the range weights and COSEWIC status weights should be updated to real values (see inst/extdata/layers_Canada-CHONe2014.R). Then the scores should be calculated again using the OHI app.
Merge pull request #16 from OHI-Science/master

updated ICO to use a new layer with Canada's range weighted COSEWIC exti...