Also, make it clearer what is shared and instance-specific

So,
libvlc_t ==> libvlc_global_t
vlc_t ==> libvlc_int_t (internal instance)

p_object->p_libvlc ==> p_object->p_libvlc_globale
p_object->p_vlc ==> p_object->p_libvlc

VLC_OBJECT_VLC ==> VLC_OBJECT_LIBVLC

And by the way, there is some cleanup required :) (ie, some things are created in the global object instead of the instance-specific one)

* src/misc/messages.c, src/input/input.c: revert 16279 and use OBJECT_FLAGS_QUIET instead when preparsing.

* If we are passed a SUB file as subtitle, just open the IDX instead, if there is one. (Closes: #681)

* src/input/input.c: use input_AddSubtitles() and fix a bug with the autoselection of autodetected subtitles files.

* Improve notification layout

What is currently broken:
 * Some playlist demuxers (shout, dvb and pls)
 * DAAP
 * BeOS playlist
 * GPE playlist, I suppose

What has some trouble:
 * Meta handling in several demuxers (most notably TS)
 * Skins2 playlist (doesn't refresh correctly)
 * OS X playlist (see bigben's latest commits)

 (in KHz) + fixed the bitrate ("$B") variable to use only the audio bit rate.
* winamp2.xml: updated the winamp2 skin

* Add i_options/pp_options to intf_Create

* add global options to enable file-logging and syslog (Refs:#508)

To use it, put a string in p_object->psz_header, all messages from this object and its parent will have the header prepended

Get input bitrate