Generated & tested checkpoint hash for block 470,000 on both 0.0.12 & 0.2 (

Generated & tested seed blocks for blocks 460,000 to 470,000 on both 0.0.12 & 0.2 (

Efforts to diagnose hash mismatches when deterministically building 0.2 via Gitian, builds are the same but 3 sets of bytes (29 bytes total) are causing hash mismatches