Onboard kevr as project maintainer

Fix #438 (closed)

group_vars/all/archusers.yml

@@ -348,6 +348,13 @@ arch_users:
       - dev
       - multilib
       - tu
+  kevr:
+    name: "Kevin Morris"
+    ssh_key: kevr.pub
+    hosts:
+      - mail.archlinux.org
+    groups:
+      - support-staff
   kewl:
     name: "Kewl FFT"
     ssh_key: kewl.pub