Heisenbridge

- Fix ROOM -h not working
- Prevent AVATAR command from updating displayname

- Free form AUTOCMD after joining a channel, per channel
- Automatic rejoin on invite or kick (invite enabled by default)
- AVATAR network room command to set avatars for IRC users (admin only)
- WHOIS room command for PMs, PART for channels
- Add ROOM command in network room to run channel room commands safely
- Move PLUMBCFG stuff under ROOM command

QoL stuff, remember to use ROOM command instead of PLUMBCFG now.

- SOCKS proxy support
- CertFP authentication support
- WHOIS command and reply formatting
- Basic CTCP support (optional, default off)
- Compatibility/workaround for Dendrite and Conduit registration configuration
- README has been improved

python-socks is now a dependecy.

- Use read receipts to track messages
- Don't prefix all lines in relaybot mode (regression)
- Fix formatter recursion context un-pillify (regression)

- Handle CTCP replies better
- Process plumbed media events as text
- Prevent looping back plumb notices
- Prevent control characters from leaking to IRC
- PyPI releases
- Fix weird displaynames causing havoc