Fixed error when user logs in multiple times while thread is processing hashes

loginsecurity.py

@@ -25,9 +25,11 @@ def matches(password,user):
 def matches_thread(password, user):
     hashed = get_pass(uid(user))
     if crypt.verify(password, hashed):
+        if user.getName() in logging_in:
             del logging_in[user.getName()]
             msg(user, "&aLogged in successfully!")
     else:
+        if user.getName() in logging_in:
             msg(user, "&cInvalid password")