[0.9] Factorio crashes when Water is set to none

[Spider]

Some info

* This happens randomly when you go into the Editor,set Water to None, Generate the map and zoom out.
* The map-generator always places some lakes in the starting area (even when water is set to none).
* The map-generator always generates a circle around the player with another texture (starting area is dirt and is circled by sand i.e).
* Added a scenario for the editor where this happens. Load it, zoom out and the game crashes.

[cube]

Thanks for the report. The crash is fixed for 0.9.1. Also the map generation dialog will be simplified a bit, removing the terrain options that now depend on biomes and also changing the "no water" option to "water only in starting area".

[Spider]

Thanks!