* Profile all stages
* Try to recover senders with 8 goroutines
* fix CPU profiling for stage_bodies
* fix out-of-index
* Try full DAG for verfication of header seals
* Try to unroll fnvHash for performance
* SSE2 assembly for fnvHash16
* fnvHash16AVX2
* Revert changes to state.go
* check we're on 64-bit in useAVX2
* Shave a move off fnvHash16AVX2
* asmdecl doesn't know about VMOVD
* disable linter in the right place