Merge pull request #588 from cmu-delphi/lcb/complete-author-info-update

Complete partial update to author info

Author: brookslogan

DESCRIPTION

@@ -6,7 +6,7 @@ Authors@R: c(
     person("Jacob", "Bien", role = "ctb"),
     person("Logan", "Brooks", , "lcbrooks+github@andrew.cmu.edu", role = c("aut", "cre")),
     person("Rafael", "Catoia", role = "ctb"),
-    person("Nat", "DeFries", role = "ctb"),
+    person("Nat", "DeFries", role = "aut"),
     person("Daniel", "McDonald", role = "aut"),
     person("Rachel", "Lobay", role = "ctb"),
     person("Ken", "Mawer", role = "ctb"),