DEMUX_CAN_PAUSE and DEMUX_CAN_CONTROL_PACE can now fail.

MacOSX/Framework/VLCMedia.m: Don't forget to init the metaDictionary, when initing from a media_descriptor object.

MacOSX/Framework/VLCMedia.m: Separate the different part by some nice comments. Remove uneeded and complicated code in meta information retrieval. Use stringWithUT8String instead of stringWithCString.

MacOSX/Framework/VLCMedia.m: Use mediaWithURL:(NSURL*) instead of mediaWithURL:(NSString*). Add a mediaWithPath:(NSString*) constructor.

MacOSX/Framework/VLC.xcodeproj: Various updates, such as removal of the SDK, gc support, and QuartzCore linking, and use NATIVE_ARCH as the only target.

Qt4 - Rewrite of the VLM Dialog. It features a list on the left of the VLM object, and a right pane to see them in details. Creation and modification is doable. This is not yet a VCR, but it could be :D
The code is way not finished and uncleaned, but feel free to improve.
Only Brodcast elements have a start of code.

It should fix some issues with Samples with Video + Cook.
If you think this is wrong, please revert.

* fixed a corner case on PowerPC-based Macs since MACOSX_DEPLOYMENT_TARGET is set to 10.1 on these devices, although we need at least 10.3 and prefer 10.4

* disable the usage of the OSX SDKs by default due to a known incompatibility between the libraries used on 10.4.8 (or higher) and the existing 10.4u SDK. This solves the current compilation issues with the AUHAL and Screen.Mac modules and closes #1399

* disable Screen Capturing on OSX until it is fixed because it blocks all builds on most 10.4 setups (refs #1399)

qt4: use preprocessor flags with moc, so it finds the headers in the right place

Fix hang in live555 when sending RTSP OPTIONS by letting readSocket() timeout after 5 seconds. Added reconnect case to modules/demux/live555.cpp (without backing off scenario).

(Modules that would still depend on module_config_t are not going to like this, but it's not like you weren't warned a long time ahead)

Really fix charset for http-lua pages (--[[ ]] are block comments in lua so anything inside those isn't taken into account)