Release 0.3

-Rewrote the render loop so it should use much less cpu/gpu when idle
-Added documentation under the 3d window in the tab. Toggles with a button.
-Made all the code changes needed (I think) to do an official release on the plugin depot.
-Added an option to orbit the model when the scene is idle (no mouse movement for 5 sec).
-Added an option in the Documentation section to add additional CSS to the page. This is to allow users to change the size of UI elements without a whole UI of its own. Its not a great solution and I may do something else later.