configure: Fix IRCD_USE_MAGICK defined to 0.

ircd::allocator: Add trapdoor on size and alignment for hugepage advise.

ircd::m::gossip: Fix attempt hash; msb on remote.

ircd::ios: Increase default emption frequency.

ircd::db: Fix erroneous false hits from db::cached().

modules: Use complete name for strlcat to avoid collision

ircd::m::vm: Fix possible sequence conflict; assert uniqueness; minor…

… cleanup.

ircd::m::fed::event_auth: Use single endpoint w/ auth_chain_ids inste…

…ad of state_ids.

ircd::m::vm::fetch: Perform pre-sort for full received auth_chain.

ircd::m::vm: Fix placement of DUPCHK; adhere to opts.unique; remove r…

…edundant re-check.