Revision 647 - 2006-10-05:
Added: New database flags for modders:
TerrainImprovementDB:
BonusScience: Terrain Improvement gives bonus science to its city.

Revision 551 - 2006-03-01:
Added: New database flags for modders:
CityStyleDB:
BonusScience: City style gives a science bonus.

Revision 551 - 2006-03-01:
Added: New database flags for modders:
AgeCityStyleDB:
BonusScience: Age city style gives a science bonus.