Hotfix v0.8.4ac4ec3

[p]This update fixes a few small issues.[/p][p][/p]

• [p]Added a performance overlay graph, which can be enabled using the console command: /show_stats \[true|false][/p]
• [p]Improved AI performance on banked corners.[/p]
• [p]Changed how General's suspension works visually - the suspension arms now move dynamically.[/p]
• [p]FIXED: Car textures no longer leak memory at the start of each race.[/p]
• [p]FIXED: Points system set in multiplayer no longer overwrites local settings.[/p]