A small patch and money graphs! — Lil' Airport Steam update #362393

Hello everyone! this small Patch adds the following features and fixes to the game: Features: In the statistics panel, you now can see your income streams and spending as a graph over time. Click on "show graph" in the statistic panel to show the graph. The research, building and runway upgrade menu buttons are now pulsating blue, if there is something new to discover. Fixes: Adjusted the scroll speed of vertical scroll bars. Fixed the audio slider, so it actually works. Buttons for runway upgrades which are already done, do not show up anymore. The Achievements "Gear Head" and "On Schedule" can now actually be achieved. Thats it for now. See you! Marcel aka pidibidi