database project v1
added external storage and entity framework   -  not tested
tested, fixed, added last msg download timestamp to user in db
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.
switched to internal storage for merge
Merge branch 'database_support'

Conflicts:
	web_app/duta.Tests/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
	web_app/duta.v11.suo
	web_app/duta/App_Data/aspnet-duta-20131013121823.mdf
	web_app/duta/App_Data/aspnet-duta-20131013121823_log.ldf
	web_app/duta/duta.csproj
	web_app/duta/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
launch cleanup after merge