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

config/config.go

@@ -0,0 +1,27 @@
+package config
+
+import (
+	"encoding/json"
+	"os"
+)
+
+type StackConfiguration struct {
+	ConfigLoaded              bool
+	AllowFreshAdminGeneration bool
+	AdminEmails               []string
+	AdminHmacEnv              string
+	UserHmacEnv               string
+}
+
+var Config = StackConfiguration{}
+
+func LoadConfig() {
+	file, _ := os.Open("conf.json")
+	defer file.Close()
+	dec := json.NewDecoder(file)
+	if err := dec.Decode(&Config); err != nil {
+		panic(err)
+	}
+
+	Config.ConfigLoaded = true
+}