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.
hostserv/request: Depend on hostserv/main to avoid crashes if it's not yet loaded
Merge pull request #387 from attilamolnar/master+hsrequestdep

hostserv/request: Depend on hostserv/main to avoid crashes if it's not yet loaded
chanserv/op: Fix uninitialized variable usage introduced in e366228541

CID: 1238961
backend/opensex: Fix uninitialized variable usage introduced in c848333263

CID: 1238960