Add the initial kosmos-akkounts cookbook to deploy akkounts-api

Includes a recipe to set up nginx as a reverse proxy with a TLS
certificate for api.accounts.kosmos.org

Closes #18
Closes #20

nodes/barnard.kosmos.org.json

@@ -101,6 +101,8 @@
     "recipe[kosmos-hubot::hal8000_xmpp]",
     "recipe[kosmos-hubot::wormhole]",
     "recipe[sockethub]",
-    "recipe[sockethub::proxy]"
+    "recipe[sockethub::proxy]",
+    "recipe[kosmos-akkounts]",
+    "recipe[kosmos-akkounts::nginx]"
   ]
-}
+}