* WLTK decoration png's and atlas
* UncivTooltip anchor to stage so tips won't get clipped by some ScrollPane
* Empire Overview Cities add WLTK column
* Make WLTK line on CityScreen stats box link to Civilopedia
* Make Civilopedia return to previous screen for _both_ ESC/Back and the Close Button
* Revive Civilopedia links in WorldScreen.TileInfoTable
* Festive decoration for WLTK day on CityScreen
