orderfin() inconsistent on valid 'x' types

[MichaelChirico]

orderfin(as.integer64(10:1), 1:10, 0:1, method=1)
# [1] FALSE FALSE

orderfin(as.integer64(10:1), 1:10, 0:1, method=2)
# Error in UseMethod("ramorder") : 
#   no applicable method for 'ramorder' applied to an object of class "c('integer', 'numeric')"

That's coming from ramorder(0:1), where ramorder() has no integer method. A simple fix is to cast as.integer64(x) first, otherwise to attempt a ramorder.integer method which does so (to avoid the case of casting a double & it's concomitant issues).

[MichaelChirico]

This was closed by #206