--------------------------------------------------
[2009-04-06] playlist atomic operations 
    - needed by TLV
    - rely on new engene.playlist and extentions to engine.commit.db and db sql.

	renamePlaylist.php
	engine_playlist.class.php
	addMediaToPlaylistPosition.php
	registerPlaylist.php
	engine_commit_db_sql.class.php
	removePlaylist.php
	engine_commit_db.class.php
	removeMediaFromPlaylistPosition.php
	moveMediaInPlaylist.php 

--------------------------------------------------
[2009-04-06] p2 - protocol 2 - update and commit new protocol (p2). It is only used by WS4 

	type=>name
	value=>data (for cells)
	type=>metadata (for cells)
	['ProtocolVersion'] = 1.0 => 2.0
	'updateRequests' => root
	'updateResponses' => root
	'updateResponse' => realm
	'tableUpdates' => table
	'tableUpdate' => row
	'dataChange' => cell

	commitResponse' => realm
	commitRequest => realm
	tableCommits => table
	tableCommit => row
	errorResponse => error

--------------------------------------------------
[2009-04-06] public media upload 

	registerMedia.php
	requestUpload.php
