protocol/ngircd: Handle account name metadata

And store the certfp while I'm at it.
Add kline_verified_ident

Klines *@host instead of user@host if ident has a ~ as first char, even
with kline_with_ident set.
Merge branch 'kline_tilde' of github.com:errietta/atheme
Bump ABI revision for kline_verified_ident addition.
[WIP] protocol/ngircd: fix the burstlogin condition

Still need to test.
chanserv/quiet: honour protected mode like with kick/kickban (closes #258)
Merge pull request #259 from grawity/ngircd-metadata

protocol/ngircd: Handle account name metadata
groupserv: add groupserv_sourceinfo_flags() (ref #244)
groupserv/flags: use gs_flags_parser() (ref #244)
groupserv/flags: ensure that GA_FOUNDER is required to set +F or -F on an access list entry. (closes #244)
saslserv: disable reload capability on all modules (closes #219)