Musicset can provide multiple tracks for a music tag.

See patch #4669


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24817 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Allowed civ2civ3 ruleset Merchant units to use railroads.

Patch by David Fernandez <bardo>

See patch #4641


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24818 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
When server is shutting down (-e commandline parameter) because of quitidle time,
send message saying so to the metaserver. It used to send message claiming that
server is restarting in that situation too.

See bug #21504


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24820 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Optimized genhash_bucket_lookup() by replacing switch - case construct with
carefully crafted if -branching.

See bug #21972


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24823 a0f10bec-cc02-0410-94fc-a9cfff90b4cd