support SpecialFunctions 1.0

Author: stevengj

Project.toml

@@ -9,7 +9,7 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 
 [compat]
-SpecialFunctions = "0.8, 0.9, 0.10, 0.11"
+SpecialFunctions = "0.8, 0.9, 0.10, 0.11, 1"
 julia = "1.3"
 
 [extras]