now includes spatial matching
Includes probability of introduction as parameters to be estimated, one for each introduction location
Single introduction probability

Introduction of foxes can now occur from a single source with given probability that gets updated
Two introduction points

This version uses two introduction points per model run. one from a port and onefrom a town.
Each has its own probability of
introduction and year.
Added spotlight monitoring

Spotlight monitoring added as
function spotlight.surveys()
Added Val argument to match.locations
Minor edits to docs
New function Make.Raster