from Hoerdt Mickael with cosmetic changes

Patch by Torsten Spindler

Remark : should we keep the --telnet-port option that is now redundant ?

* Back to the hack for the isItem: inNode function, since this is several orders  faster than the high level functions provided by Cocoa... Playlist behaves corectly on big lists again...
* Fixes a bug in drag and drop

This (and previous patch) still needs some work as genres containing spaces
aren't parsed correctly

* vlc_symbols.h, vlc_playlist.h, view.c : add a function to remove a parent from the parent list of an item (if anybody wants to make that another way...)
* playlist.m: implements full drag and drop of playlist items. Drop of multiple items and of items and nodes at the same time should be supported. You cannot mode service discovery items. This is a choice and can be changed if wanted.
* Hopes that compiles on current trunk (cannot check since latest comits on net functions broke the built of a half the modules and core of the OSX port...)

* Store object to move in the class itself, since I just don't manage to deal with NSPasteboards...

* added a summary-tab at the end of the wizard (mostly for debug-reasons, but perhaps we want to keep that for the user as well?)
* implemented the entire logic (except encap-formats while transcoding)
* added data collection of all values
* fixed some l10n issues

The wizard is still not useable for streaming, since it does not communicate the settings to the core yet. Additionally, various things still need to be done (see TODO at the beginning of the file).

* modules/stream_out/rtp.c, modules/misc/rtsp.c: attempt at supporting amr nb/wb for rtsp streaming... doesn't look like livedotcom like it though.