Update v0.2.38f4d3a

This update is aimed at fixing a few of the issues present with the previous update - as well as adding a few minor improvements to AI pitting logic.

Changes:

• Made a small optimisation change to (hopefully) improve performance on older machines.
  
• Made a change to how the AI slow down to handle pit-lane and pit-box entry.
  
• FIXED: Invisible walls no longer show in races.
  
• FIXED: AI will no longer try to find pit-crews themselves, if a pit AI line is present.
  
• FIXED: Hedges no longer render incorrectly.