Update to Ansible 2.2.1.0 and adjust all file mode settings to provide them as strings

tasks/main.yml

@@ -18,7 +18,7 @@
     apt_repository:
       repo='{{ item }}'
       state='present'
-      mode=644
+      mode='644'
     with_items:
       - 'deb http://s3tools.org/repo/deb-all stable/'