Overgrowth alpha 50

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!

Here are a few highlights from the source repository:

- Changed plant alpha rendering - Fixed saving swapped rotation constraints - Added bone-bone collisions - Disabled auth check - Ribbon panels - Hooked up rigging ribbon - Re-enabled enemy rabbot, health, respawn - Fixed joint inspector issues - Added keypad camera angles - Animation editor improvements - Better isolation of fixed joints - Ground grid for animation editor - Rotational joint lock - Bug fixes

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