Fixed rulesets still containing road types with "NoBonus" move mode.

See bug #22290


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@25472 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Removed getting of the fcdb option value outside assert so it gets
executed in NDEBUG builds too

See bug #22274


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@25473 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Show unit convert time in help.

See gna bug #22291.

git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@25475 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Standardise on US English spelling for civ2civ3 building names.

See gna bug #22292.

git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@25476 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Miscellaneous typo fixes, grammar tweaks, TRANS comments etc.

See gna bug #22294.

git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@25477 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Fixed autosettler to adjust to number of move fragments when determining
goodness of a road to build.

See bug #22289


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@25481 a0f10bec-cc02-0410-94fc-a9cfff90b4cd