Squashed commit of the following:

commit 20da48e2bcfd50cbac30a16488b6e16679717b32
Author: SuperCiacho <bartosznovak@gmail.com>
Date:   Mon Nov 18 22:27:35 2013 +0100

    Metody sieciowe - part 1

commit af549f49c44df8271d6acab8a859517f00ad5564
Author: SuperCiacho <bartosznovak@gmail.com>
Date:   Sat Nov 16 00:55:53 2013 +0100

    Metoda i mechanizm logowania do serwera.