ChatShared>Entity: Fixed method names

Signed-off-by: JordySipkema <jordysipkema@gmail.com>
ChatServer: Changed the authentication code.

Authentication is now working properly.
Merge branch 'master' of github.com:JordySipkema/TI-CS-Chatapp

Signed-off-by: JordySipkema <jordysipkema@gmail.com>