apply lowercase to clientType property also

src/main/java/fr/ill/ics/util/ConfigManager.java

@@ -224,7 +224,7 @@ public class ConfigManager {
 				}*/
 			}
 		}
-		clientType = getString(ConfigManager.CLIENT_TYPE_PROPERTY);
+		clientType = getString(ConfigManager.CLIENT_TYPE_PROPERTY).toLowerCase();
 		mainClient = (clientType.equals(TokenManager.ClientType.MAIN.toString().toLowerCase()) || clientType.equals(TokenManager.ClientType.TABLET.toString().toLowerCase()));
 		remoteClient = !mainClient;
 	}