Preparing for v0.5.0 release

See merge request famedly/conduit!443

Make prev_events fetch limit configurable

See merge request famedly/conduit!422

Implement membership ban/join/leave/invite reason

See merge request famedly/conduit!442

Code Cleanup

See merge request famedly/conduit!441

https://rust-lang.github.io/rust-clippy/master/index.html#op_ref

https://rust-lang.github.io/rust-clippy/master/index.html#str_to_string

https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes

improvement: handle restricted joins locally

See merge request famedly/conduit!439

Replace println/dbg calls with corresponding macros from tracing crate

See merge request famedly/conduit!424

Update README

See merge request famedly/conduit!438

fix: jaeger support

See merge request famedly/conduit!437

Upgrade Ruma

See merge request famedly/conduit!435

… and it's good to let people have their own local configs that won't be
tracked by git.

Migrate database to use correct rule id in pushrules.

See merge request famedly/conduit!405

fix: rejoining restricted rooms over federation

See merge request famedly/conduit!431

Describe a better way to enforce Content-Type in nginx

See merge request famedly/conduit!415

call sd-notify after init and before exit

See merge request famedly/conduit!426

Added cross-compilation instructions

See merge request famedly/conduit!430

Update Cargo.lock

See merge request famedly/conduit!427

fix: unable to leave room

See merge request famedly/conduit!419

Clean some noisy logs

See merge request famedly/conduit!423

Reduce length of generated access tokens and session ids

See merge request famedly/conduit!386