* Move -m and -n command line options into the config file
* Restructure configuration file:
- Group into "server", "stream", "media", "metadata", "decoders", and
"encoders"
- Untangle decoder and encoder:
o Decoders match on file extensions and convert to a canonical "internal"
format
o Encoders create one of the supported stream formats, potentially using
different parameters (like bitrate)
- Consistently specify stream format
- Enable reencoding by selecting an encoder
* Architecturally separate configuration file storage from parsing
- Allows for different configuration back-ends in the future, like
YAML, SQL, REST API, ...
* Support roll-back in case of error on (re)load
* Anticipate HTTPS support
