services_discovery: stores the category & onelevel playlist_item_t* in the services_discovery_t structure
simplify upnp* and hal modules

(Still MIDI tempo is critically missing)

width and height are specified in the subtitles stream. This may
result in chunkier text in some instances, but it should get it
back on screen at least. Will look into smoothing it out next.

the mkv demuxer could double checked it)

(Still missing the ES out so pretty useless, but got to sleep now)

macosx: Multiple GUI improvements follow j-b's and my approach to synchronise the QT4 and OSX intfs, more to come
- "Use DVD Menus" is inverted now, so it's "No DVD Menus"
- 3 dots at the end of a menu-item's caption mean that the entry will trigger a window (following Apple's HIGL)
- removed the entries for "Report a Bug" and "License". The first isn't necessary as we got enough of them and users doing useable reports know how to do, the latter will re-appear in the to-be-re-designed About panel.
- additionally, removed useless occurences of vlc_bool_t in favour of BOOL
- preparations to add fps to Statistics

Qt4 - no more timeElapsed/timeReamining menu for a boolean option. Right and left click toggle it, while double click opens the goto one. kudos to the KDE team.

Qt4 - double clicking the time can open the gotoTimeDialog ! Feature request to match OSX behaviour.

removes extra spaces, removes tabs