Hotfix v0.7.ffa41ad

This update fixes a few small issues with Online Multiplayer.

• Status light in the player list is now orange when the player is syncing, and shows the number of tracks left to sync.
  
• Added a notice about checking the client version when connected - user will be disconnected if game versions mismatch.
  
• FIXED: Follow camera no longer flies off the screen at low frame rates.
  
• FIXED: Cones no longer get launched quite as quickly in certain circumstances.
  
• FIXED: Server browser drop-down sort now works correctly again.
  
• FIXED: The pitcrew are now behaving themselves a bit better again.
  
• FIXED: Changing between track folders no longer leaks memory.
  
• FIXED: Fuel warning icon no longer appears prematurely before race start.
  
• FIXED: Apply button in Options menu now closes the menu correctly.