Rebrand: remove Atheme branding in mandated areas
Add Dockerfile
libathemecore/account: fix branching behavior

This will only show up about once a blue moon if you are lucky, but GCC
and Clang's optimizer is really good about introducing undefined
behavior with things like this, so it's better safe than sorry.
chanserv/topic: Add TOPICSWAP: Allow easily swapping out parts of a topic
{groupserv,nickserv}/info: make visibility of entity IDs an option
Channel notice command
Account flags.
protocol: sillyircd has been renamed to neephi