v1.0.3

Fixes

• Speed up snapshot loading
• Validators now perform a signature check on transactions the leader sent them, preventing a malicious leader from forging transactions
• Add validator --bind-address and --rpc-bind-address arguments
• solana catchup now supports an optional RPC URL argument for validators with private RPC
• solana catchup now detects when you try to catch up to yourself
• Added Ledger wallet installation instructions
• Nonce transaction fees are now predictable
• Fixed non-determinism when zero-balance accounts are read
• solana-genesis now supports multiple bootstrap leaders