Added music styles equivalent to supplied rulesets, all having the chart
similar to their city styles.

See patch #4545


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24636 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Added stdmusic.musicspec to distribution tarball after Fullmoon reporting
the error.

See bug #21775


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24637 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Save script.lua from freeciv-ruledit.

See patch #4452


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24638 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Added city history value editing to editor

See patch #4567


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24639 a0f10bec-cc02-0410-94fc-a9cfff90b4cd