Qt4 - Use a main instance of Sout for VLM. Clean DP since all dialogs (except Bookmarks that won't be done...) are done.

dtstospdif.c: Print a warning on frame size changes. Hopefully it will help us to debug the issue with SPDIF.

modules/audio_filter/converter/dtstospdif.c: We need a starting date. Fix a typo that cause the starting date not to be set.

Remove and unneeded member in the class.

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.