ldap: cant have uppercase letters in username

applications/ldap/seed.json

@@ -4,7 +4,7 @@
       "name": "portunus-team",
       "long_name": "Skynet Portunus Administrators",
       "members": [
-        "Silver"
+        "silver"
       ],
       "permissions": {
         "portunus": {
@@ -20,8 +20,8 @@
       "name": "skynet-user",
       "long_name": "Skynet users",
       "members": [
-        "Silver",
-        "NotSilver"
+        "silver",
+        "not_silver"
       ],
       "permissions": {
         "portunus": {
@@ -36,7 +36,7 @@
   ],
   "users": [
     {
-      "login_name": "Silver",
+      "login_name": "silver",
       "given_name": "Brendan",
       "family_name": "Golden",
       "email": "skynet@brendan.ie",
@@ -46,7 +46,7 @@
     },
 
     {
-      "login_name": "NotSilver",
+      "login_name": "not_silver",
       "given_name": "Not",
       "family_name": "Silver",
       "email": "hahahahaaaaa@example.com",