KIO::StoredTransferJob (proposal for new kio job class)

[David Faure]

I think it would be beneficial to add this class to KIO 
(in job.cpp/job.h/jobclasses.h, I guess)

/**
 * StoredTransferJob is a TransferJob (for downloading or uploading data) that
 * also stores a QByteArray with the data, making it simpler to use than the
 * standard TransferJob.
 *
 * For KIO::get it puts the data into the member QByteArray, so the user
 * of this class can get hold of the whole data at once by calling data()
 * when the result signal is emitted.
 * You should only use StoredTransferJob to download data if you cannot
 * process the data by chunks while it's being downloaded, since storing
 * everything in a QByteArray can potentially require a lot of memory.
 *
 * For KIO::put the user of this class simply provides the bytearray from
 * the start, and the job takes care of uploading it.
 * You should only use StoredTransferJob to upload data if you cannot
 * provide the in chunks while it's being uploaded, since storing
 * everything in a QByteArray can potentially require a lot of memory.
 *
 */

The implementation is currently in kdepim/certmanager/storedtransferjob.*,
in a different namespace (-> no clash if I copy it to kdelibs).

Ok for commit?

-- 
David Faure, faure at kde.org, sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).