Some fixes, visual changes and AI acceleration

2 fixes, 3 small visual changes, accelerated AI, Steam Cloud update

• fixed stone positions not updating when background changes

• fixed mushrooms growing on top of the frog/toad

• The snail got better at playing the game. New vs. Old: 84:36 in a 171 game match (51 draws). See details below.

• slightly changed frog/toad eyes

• leaves look a little bit more natural now

• more variety in frog/toad, mushroom and flower sizes

• the area in which the mouse is regarded as hovering over the stump got larger

• some texts have changed

• The Steam Cloud now also syncs the file "computerlog.csv" from the program folder (.../steamapps/common/The Elm Game/saves/computerlog.csv). It contains performance measurements such as search depth, nodes per second etc. Could be used to benchmark the computer.

About AI upgrades

This update accelerates the "think speed" of the computer player a little bit. The time constraints remain unchanged. Compared to before it is now able to plan a little further ahead into the future, resulting in better strategies. The beetle and fly are not affected since they have fixed search depths anyway (6 and 2). Only the snail with unlimited search depth benefits from it. However, all three may in some situations behave somewhat differently then before.