Update authors field

DESCRIPTION

@@ -5,7 +5,7 @@ Version: 0.4.0
 Date: 2018-03-07
 Authors@R: c(person("Jan", "Wijffels", role = c("aut", "cre", "cph"), email =
     "[email protected]"), person("BNOSAC", role = "cph"), person("Kevin", "Ushey",
-    role = c("aut", "cre", "cph"), email = "[email protected]"))
+    role = c("cph"), email = "[email protected]"))
 Maintainer: Jan Wijffels <[email protected]>
 Description: Create, edit, and remove 'cron' jobs on your unix-alike system. The package provides a set of easy-to-use wrappers
     to 'crontab'. It also provides an RStudio add-in to easily launch and schedule your scripts.