hopefully prevent deadlocks

* API : add the b_force parameter to playlist_NodeDelete. If TRUE, nodes that are marked as read-only will also be deleted. Use with care.

* SAP/DAAP : Ensure that the  node gets removed on quit
* HAL : Remove the node on quit and fix f**age of the Close function

* fix bug in previous SAP commit

* modules/video_filter/scale.c: Guard against p_pic->pf_release being NULL, which can happen e.g. if an unknown chroma is passed to the video output/filter

(will fix improperly encoded playlist items when the user's charset
does not match the SAP announcer's one, provided all SAP announce be
made into UTF-8)

* modules/packetizer/mpeg4video.c: oops, don't forget to handle streams where only the DTS is available.

wizard update -- set default vbitrate, abitrate (courtesy of zorglub), make boxes wxCB_READONLY to restrict choices

* src/misc/vlm.c, modules/codec/vorbis.c: MSVC compilation fixes by Steve Lhomme (steve dot lhomme at free dot fr).

* Update the LIST
* Coding style fixes

in the streaming method page of the wizard, in order to properly show all
text. Hardcode the top spacing in order to prevent controls from moving
around on Layout(). reported by markfm

actually selecting anything (reported by Trax)
both: fix a compiler warning (c++ likes function that don't change their
parameters to declare them const)

* cdda/access.c: removed #include <cdio/cdda.h> since it's a new header that isn't always available and wasn't version ifdef'ed. An already version ifdef'ed include already exists in cdda/cdda.h

* src/playlist/playlist.c: Don't touch object_lock vlc_object_create and vlc_object_destroy already take care of it.

* modules/codec/dvbsub.c: don't render empty subtitles when we receive subtitles data that doesn't match our subtitles page id.

* modules/demux/ts.c: fixed typo for DVB subtitles descriptor parsing (only affects multiple tracks streams).

* modules/access/smb.c: win32 implementation which doesn't depend on libsmbclient + proper URI parsing.