an HTTP/HTTPS connection.
- Added libcurl and libressl as project dependencies.
- Added HttpDataStream (which uses libcurl and libressl). Includes an
LruDiskCache so responses can be cached to disk for offline playback.
- Added new IEnvironment SDK interface. Plugins can query the
environment for path information, data streams, or decoders. More
functionality will be added over time.
- Fixed FlacDataDecoderFactory to handle the correct mime type
(audio/flac, not audio/flag)
- Tweaked NomadDecoder.cpp to return the stream length immediately instead
of waiting for an fseek().
