HTTPConnection 1.3

As now I have a class for generic TCP-connection I have started to change the existing classes that implement protocols to extend from TCPConnection.
That way in the protocol-classes I do not need to care anymore about how the connection is established and how to send or receive data.

As HTTPConnection 1.3 extends from TCPConnection you need both classes in your project.
If you do not want this you may use HTTPConnection 1.2b as it offers the same functions as version 1.3.