Overgrowth alpha 41

Here is what is new in Overgrowth in this weekly alpha. If you are confused what a weekly alpha is, or even what Overgrowth is, please read our fancy FAQ. Basically, we are developing a massive video game from the ground up -- we are able to do this completely independently by accepting preorders for the game before it's done!

Aubrey has made a number of new art assets this week, which are included in this alpha. On the coding front, here are a few highlights from the source repository:

- Improved translucency shading - Added ambient wind motion for plants - Fixed some shader inconsistencies - Added plant shadows and self-shadows - Better undo / redo system - Better dialogs - Better server browser - Bug fixes

Thanks as always for all the support! See you guys in IRC and the forums.