nickserv/enforce: make REGAIN login *you* rather than the target.

Previously, the change to make REGAIN identify as well would login the
user previously using the regained nick.
Merge pull request #377 from ilbelkyr/fix-regain-login

nickserv/enforce: make REGAIN login *you* rather than the target.
nickserv/enforce: Only login user to target account if they weren't already.

Also fixes a minor oversight in commit 9942cab where the user would not
be properly logged out.
Merge pull request #378 from ilbelkyr/really-fix-regain-login

nickserv/enforce: Only login user to target account if they weren't already.
Add channel output to flag lines in FLAGS command

A simple change to add the name of the channel to each flag line output for the FLAGS command. The advantage of this is that it makes it possible for a bot to be able to read the output of the command - without the #channel output it's not really possible to tell which channel a line in the flag response is concerning. With this change it is easy to key them - e.g. http://ur1.ca/i4hgr
protocol/inspircd: allow +J 5 as the comment promises
Merge pull request #379 from reality/patch-2

Add channel output to flag lines in FLAGS command
libathemecore: Deduplicate VERSION string building code
protocol/inspircd: Send a VERSION string that is similiar to what we send to other ircds
protocol/inspircd: Allow all METADATA accountname messages to set the internal account name of a user

Fixes #308
nickserv/multimark: Fix const discard warnings
transport/jsonrpc: Fix format argument type mismatch warning
Merge pull request #384 from attilamolnar/master+inspircd-login-fix

protocol/inspircd: Allow all METADATA accountname messages to set the internal account name of a user
Merge pull request #385 from attilamolnar/master+multimark-warnfix

nickserv/multimark: Fix const discard warnings
Merge pull request #386 from attilamolnar/master+jsonrpc-warnfix

transport/jsonrpc: Fix format argument type mismatch warning
Merge pull request #383 from attilamolnar/master+version

Send the correct version string to InspIRCd servers
helpserv/ticket: optionally accept a close reason and send a memo to an offline user (closes #129)
gameserv/dice: make maximum rolls configurable (closes #278)
protocol/inspircd: chase rejoindelay announcement changes (inspircd #913) (closes #380)
atheme 7.2.0-beta1.