Log Message:
Bump to 7.2.1

-- ircd-hybrid-7.2.1 RELNOTES
o) Fixed build on SRV4
o) Fixed problem where ircd would disconnect all SSL connections
o) Added initial CAP support.  Additional documentation can be found
in doc/technical
o) Speeded up command parsing
o) Fixed occasional core dump on UN*LINE
o) Fixed bug where particular clients would always receive
   "Load is temporarily too heavy" message
o) Improved memory consumption, i.e. memory consumption has
   been reduced for remote clients
o) Fixed possible core in case default_cipher_preference directive isn't set
o) Fixed "CHANSERV INVITE" bug with anope services
o) Updated example configuration files to reflect new topicburst flags
   directive in connect{} blocks
o) Fixed core if using the operator{} 'umodes' directive
o) Don't allow shared k-lines to be set without a valid reason
o) Improved channel ban match processing.  This also fixes CIDR bans