[patch] KIO::Slave changes and new KIO::DataSlave/KIO::DataProtocol

[Leo Savernik]

Hello,

This patch contains all changes to be made to KIO::Slave and associated 
classes 
to support in-process processing of data urls without the overhead of process 
launching. 

Changes comprise of: 
Makefile.am: 
* compile added files 
job.cpp: 
scheduler.cpp: 
* replaced all calls to slave->connection()->send/suspend/resume with 
slave->send/suspend/resume 
slave.cpp: 
slave.h: 
* added method send(cmd,data) 
* added virtual_hook structures 
* modified methods to respect virtual_hook if derived from slave 
* added a new constructor which derived classes must use 
* added a flag which marks a slave instance to be a base class (d->derived) 
* made factory methods take into account the special protocols (for now 
there is only "data") 
* fixed some typos 
dataprotocol.cpp: 
dataprotocol.h: 
* these are new, they handle the core data protocol functionality 
dataslave.cpp: 
dataslave.h: 
* these are new, serving as an adapter between Slave and DataProtocol 

Sorry for the big patch. I wanted to split it up into smaller parts first but 
all the changes are interdependant in such a way that a proper compilation is 
not possible if any parts are missing.

See patch:
http://bugs.kde.org/attachment.cgi?id=894&action=view

The above patch is meant for review, I'll clean it up a bit before comitting.

mfg
	Leo