0.6

• use logs for logging, deprecate custom logger
• better irclogs parser
• use Yojson.t
• add extra_args to config parser

0.5

• refactor: use curly for the web plugin
• refactor: use irc-client-lwt-ssl instead of tls
• chore: make examples/tools native only
• fix prefix1-full
• feat: redis interface
• make calculon-extra non-optional

0.4

• refactor: pass prefix during matching, not at command creation
• test: use mdx, update readme to compile again
• chore: bump minimal OCaml version to 4.03
• refactor and fix help command
• chore: move to dune, including for demo bot
• update documentation
• add travis-ci
• migrate opam file to opam 2.0
• update doc of cmd_help, of_cmd, of_cmds
• add custom prefix for commands
• add command prefix in the description
• TLS client cert support