Add /v2/account/mail.

v2/account/mail.js

@@ -0,0 +1,29 @@
+// Authenticated endpoint that dumps out the account's mail. Includes
+// mail that has not yet been delievered (e.g., mail queued past the
+// 10 that are visible in-game), but only shows the top 100 (to
+// discourage infinite queueing which would probably break the API).
+// Requires the "account" and "contacts" scopes.
+
+// GET /v2/account/mail?access_token=<account+contacts>
+
+[
+  {
+    "from_id": "8890B5A0-7D2E-E611-9106-0862664D7672",
+    "from_account": "Lawton.7615",
+    "from_char": "Fsdf",
+    "subject": "subject",
+    "message": "hello",
+    "timestamp": "2017-05-09T23:01:50.000Z",
+    "coins": 42000,
+    "items": [
+      {
+        "id": 20323,
+        "count": 2
+      }
+    ]
+  }
+  /* ... */
+]
+
+// NOTES:
+//  * from_id references /v2/account.id