Update to fuser=0.9 (i.e., 0.9.1). Update websites, version numbers, etc. for new release.
Finally use `destroy` properly, got rid of the `Drop` impl for `FS`. Drop `AutoUnmount` which wasn't doing anything anyway.
Fixes and improvements to CI, docs, and logging.
Completion generation support, with stored completions in the repo. Would be good to have a way to automatically update them.
Pull out app into separate module, `cli.rs`.
Adds support for YAML using [yaml_rust](https://crates.io/crates/yaml-rust).
Some compromises due to YAML funniness: compound keys will be treated as their hashes.
Broad refactor of how things work, moving `json.rs` to `format.rs`.
Adds support for TOML, along with CLI stuff for setting formats (which are automatically inferred from filenames).
Adds support for binary data using base64 encodings.
