V1.1: Data Prefetch, Multiplier fixes, etc.

What's new?

• Changed parameter usage help parameter to /?
• Fixed Set Multiplier not working at all
• Fixed unsupported Multiplier settings not being rejected
• Fixed Multiplier 6.5x not being rejected
• Set Multiplier now gets blocked on non-PLUS CPUs
• Added feature to enable/disable Data Prefetch
• Program now detects Windows and refuses to run on it
• Improved error handling for PCI/AGP BAR scanning
• Added feature to list all PCI/AGP BARs