add email to user and allow to connect through email or username

Resources/config/doctrine/User.orm.yml

@@ -14,6 +14,21 @@ Chill\MainBundle\Entity\User:
         username:
             type: string
             length: 80
+        usernameCanonical:
+            name: username_canonical
+            type: string
+            length: 80
+            unique: true
+        email:
+            type: string
+            length: 150
+            nullable: true
+        emailCanonical:
+            name: email_canonical
+            type: string
+            length: 150
+            nullable: true
+            unique: true
         password:
             type: string
             length: 255