only lowercase usernames in security db

modules/security/src/main/Api.scala

@@ -20,7 +20,7 @@ private[security] final class Api(firewall: Firewall) {
 
   def saveAuthentication(username: String)(implicit req: RequestHeader): Fu[String] = {
     val sessionId = Random nextString 12 
-    Store.save(sessionId, username, req) inject sessionId
+    Store.save(sessionId, username.toLowerCase, req) inject sessionId
   }
 
   // blocking function, required by Play2 form
@@ -30,8 +30,8 @@ private[security] final class Api(firewall: Firewall) {
   def restoreUser(req: RequestHeader): Fu[Option[User]] =
     firewall accepts req flatMap { 
       _ ?? {
-        req.session.get("sessionId").fold(fuccess(none[User])) { sessionId ⇒
-          Store userId sessionId flatMap { _.??(UserRepo.named) }
+        req.session.get("sessionId") ?? { sessionId ⇒
+          Store userId sessionId flatMap { _ ?? UserRepo.byId }
         }
       }
     }

modules/security/src/main/Store.scala

@@ -17,7 +17,7 @@ object Store {
 
   type IP = String
 
-  def save(sessionId: String, userId: String, req: RequestHeader): Funit =
+  private[security] def save(sessionId: String, userId: String, req: RequestHeader): Funit =
     $insert(Json.obj(
       "_id" -> sessionId,
       "user" -> userId,

todo

@@ -69,7 +69,6 @@ the forum search user:mephostophilis returns no result
 check team average elo http://en.lichess.org/inbox/benuegti#bottom
 if game ends during move -> bug
 LilaError['[analysis] fred65 already analyses ueogn4fr, won't process ueogn4fr']
-link http://webchat.freenode.net/?channels=lichess
 "continue from here" does not continue from current pos. also should lazy load fen
 
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