Adding admin creation, conf and other items

* Config now added, accessible via config.Config
* Admin can now be generated via a randomized URL if there are no admins
in the system
* Added a shared floor to login attempts to block enumeration attacks

conf.json

@@ -0,0 +1,4 @@
+{
+    "AllowFreshAdminGeneration": true,
+    "AdminEmails": ["admin@admin.invalid"]
+}