- Greatly speedup k-/g-line lookup. Instead of testing every single client against
  every single k-/g-line just check the just added ban against connected clients.
- Renamed ban_them() to conf_try_ban()
- conf_try_ban() removed exemption notices that are now redundant
- hostmask.c:parse_netmask(): optimize for the ipv4 case


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/branches/8.1.x@2815 82007160-df01-0410-b94d-b575c5fd34c7
- m_encap.c: fixed indentation, style cleanups, reformatting


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/branches/8.1.x@2817 82007160-df01-0410-b94d-b575c5fd34c7
- m_dline.c, m_kline.c: fixed wrong copyright years


git-svn-id: svn://svn.ircd-hybrid.org/svnroot/ircd-hybrid/branches/8.1.x@2819 82007160-df01-0410-b94d-b575c5fd34c7