Version 0.2.1

New features / content

 * GSO small wheels, Geo Corp wheels and Geo Corp metal wheels now steer allowing for vehicles to have tighter turning circles.
 * The standard cursor is now replaced with a custom TerraTech cursor.
 * The base shield is now powered by biofuel, which is refined from wood.
 * The base shield size grows and shrinks smoothly instead of snapping to the new size.
 * A back button has been added to allow a vehicle snapshot to be cancelled.
 * The camera has been improved to cater for vertical flight.
 * Guns can now aim up & down based on ballistic trajectory calculation.
 * A clock has been added to Sumo Showdown to time matches.
 * Esc key mirrors the functionality of the back button.

Major

 * The base refinery will now correctly refine each resource instead of incorrectly grabbing 2 and outputting 1.
 * Checkpoint challenges now load the correct biome.
 * Trees no longer spawn in a fallen state.

Minor

 * In the Main Menu, it's no longer possible to rotate the camera.
 * The cannon weapon is firing at the correct rate i.e. slower than the machine gun.
 * When taking a vehicle snapshot, the snapshot button is now hidden to prevent it being clicked on again and generating a blank snapshot.
 * Cannot double-click onto the base now.
 * At the base, when adding an item to the delivery cannon's queue, left clicking on the queue item quickly will no longer return a multiple of the proper amount of money back.
 * The sapphire crystal cacti now cast shadows.

Known issues and bugs

 * The shield does not repel enemy vehicles yet.