usermanager, util.openssl: remove legacy Prosody anonymous auth directive.
hostmanager, storagemanager: refactor code for anonymous hosts, (Fixes #120)
- Properly flag
- Have them use null storage by default
mod_host_guard, muc.lib: reflect previous commit changes.
mod_messagefilter: also reflect previous commits changes.
util.openssl: fix syntax error.
mod_muc: reflect muc.lib changes.