Greek support, modular weather, command history for console window

Former-commit-id: b72d0b018c084e80cf4fef77e1b1a81101d6daea
Former-commit-id: 32da6a2998826de6519a901dcff7bf058f689b2f

src/net/torvald/terrarum/weather/BaseModularWeather.kt

@@ -0,0 +1,18 @@
+package net.torvald.terrarum.weather
+
+import org.newdawn.slick.Image
+import java.util.*
+
+/**
+ * Note: Colour maps are likely to have sparse data points
+ * (i.e., they have 2 475 px in width and you'll need 79 200 data points for a day)
+ * so between two must be interpolated.
+ *
+ * Created by minjaesong on 16-07-11.
+ */
+data class BaseModularWeather(
+        val globalLightColourMap: Image,
+        var skyboxGradColourMap: Image,
+        val classification: String,
+        var extraImages: ArrayList<Image>
+)