Achievements report menu item is not sensitive when user is not attached to a player

See patch #4709


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24941 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Do not consider negative "No_Anarchy" effect value as enabling effect.

See bug #22067


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24942 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Enabled some code in redraw_icon2() to make it to draw at least the main graphics of the icon.

See patch #4710


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24944 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
When any ai type using default ai loses control of a unit, ferry assigned for the unit is freed
to other use. This used to happen only when unit was completely destroyed.

See patch #4711


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24945 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Added support for adding and removing techs to freeciv-ruledit

See patch #4713


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24948 a0f10bec-cc02-0410-94fc-a9cfff90b4cd
Updated man page for modpack installers. Created man links for all the modpack installer guis and cli.

See patch #4714


git-svn-id: svn://svn.gna.org/svn/freeciv/trunk@24949 a0f10bec-cc02-0410-94fc-a9cfff90b4cd