K 10
svn:author
V 6
pepeto
K 8
svn:date
V 27
2010-08-17T08:00:37.935326Z
K 7
svn:log
V 496
Changing the condition the dirtyness is cleared when changing the terrain type
of a tile: it was cleared when it was changed to ocean, changing to check the
"NoPollution" flag.

Consider nuclear fallout as a kind of pollution, also affected by the
"NoPollution" flag. Nuclear explosions produce fallouts on tiles which allow
pollution, not on land tiles only. Updated documentation of the "NoPollution"
in rulesets which use nuclear fallouts.

Reported by HanduMan (handuman)

See gna bug #16426

END