message: Correct concepts entry for cities founded on resource tiles
diff: [ICON_BULLET]The Seljuks attack the Middle East in the 11th century
  [ICON_BULLET]Buddhism is founded by building a Hindu Temple
  [ICON_BULLET]Palace costs scale with the current game era
  -[ICON_BULLET]City tiles with resources give the best production and commerce yield that would be available by building an improvement on them
  +[ICON_BULLET]Cities built on resources on islands with five or less tiles receive the production and commerce as the best improvement for the resource
  [ICON_BULLET]Missionary success chances depend on the civilization they attempt to proselytize, similar to the natural spread of religions
  [ICON_BULLET]Independent civilizations can't circumnavigate or get conquerors
  [ICON_BULLET]The spawn of the Tamil, Tibetan, Moorish, Polish and Congolese civilizations can be disabled or randomized by editing the GlobalDefinesAlt.xml file
  