modules/services_discovery/freebox.c: Create a new service discovery for the french ISP free.fr set top box.

modules/services_discovery/sap.c: Don't trust announcement down packet, but support implicit timeout.
* As suggested in the RFC we remove the discovered media if there is no new packet after three average packet period. (implicit timeout).
* Announcement of removal packet can be used to silently replace an announce by an other.
* Add a timeout argument to net_Select.

 - Fix a warning

MacOSX/Framework/VLCMediaList.m: Implement -description: and fix -flatAspect and -hierarchicalAspect when used with bindings.

Qt4 - VLM: select input from the OpenDialog, using the existing OpenDialog and not creating new one. :D

qt4: special icon made by Geoffrey Roussel alias akem/meka is displayed in the last days of the year.

playlist demuxers: return -1 in case of error, 0 in case of eof, 1 else; like any correct demuxer. (we always return eof since playlists don't need 2 successive demuxing).
fix a corner case bug in ifo.c

MacOSX/Framework/VLCEventManager.m: Directly issue events to main thread if we are called from main thread.