MacOSX/Framework/VLCMediaPlayer: Code cleanup and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCMediaListAspect: Code cleanup and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCMediaList.m: Code cleanup and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCMediaLibrary: Code cleanup and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCMediaDiscoverer: Code cleanup and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCMedia: Documentation, code cleanup and and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCLibVLCBridging.h: Documentation and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCLibrary: Code cleanup and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework/VLCAudio: Code cleanup and use Objective-C 2.0 @property. (Patch by Enrique Osuna).

MacOSX/Framework: Updated the test project to conform with the latest changes in VLC.framework. Patch by Enrique Osuna.

MacOSX/VLC_app/VLC.xcodeproj: Create three different targets to have more grain control over the dependencies. And fix the framework installation script. Default the use of the vlc-contrib-core-framework-app Target.

MacOSX/VLC_app/VLC.xcodeproj: Work around what seems to be a Xcode bug. We can't use the VLC.framework in the Copy Phase.

configure: reworked MacOS X SDK options, now use --with-macosx-sdk=DIR and --with-macosx-version-min=VERSION

macosx: fixed on-the-fly-changing of the adjust filter. code cleanup. Thanks to Antoine for pointing in the correct direction