Mac OS Update

Fixed some files for Mac OS.
Noticed that some install_name_tool fixes were rolled back; the fix
command is this:
install_name_tool -change
"/Users/arsen/Desktop/vlc-qt/build/src/core/libvlc-qt.dylib"
"@loader_path/libvlc-qt.dylib" CORAL

That must be run from terminal inside the CORAL.app at the CORAL binary
location.