"cancel" : { "kill" : true } seems to lead to errors on Windows

[ianmackenzie]

I finally started trying to look at #50 and so checked out the 0.19 branch as a local Sublime Text package, but when I tried building (Ctrl-B on an Elm file) I got

TypeError: run() got an unexpected keyword argument 'cancel'

Removing the

"cancel":
{
    "kill": true
}

option from Elm Make.sublime-build made the error go away. So is it perhaps the case that Sublime Text doesn't recognize this particular value of the cancel option on Windows because there is no kill executable?