This moves Result and Error to mdbook-core with the anticipation of
using them in user crates. For now, the internal APIs will be using
anyhow directly, but the intent is to transition more of these to
mdbook-core where it makes sense.
* Removed the itertools dependency
* Removed an unused feature flag
* Stubbed out a toml_query replacement
* Update dependencies.
* Bump env_logger.
* Use warp instead of iron for http server.
Iron does not appear to be maintained anymore. warp/hyper seems to be
reasonably maintained. Unfortunately this takes a few seconds more
to compile, but shouldn't be too bad.
One benefit is that there is no longer a need for a separate websocket
port, which makes it easier to run multiple servers at once.
* Update pulldown-cmark to 0.7
* Switch from error-chain to anyhow.
* Bump MSRV to 1.39.
* Update elasticlunr-rs.
Co-authored-by: Michael Bryan <michaelfbryan@gmail.com>
