Merge pull request #3674 from obscuren/gaz64

cmd/evm/main.go

cmd/geth/main.go

common/math/integer.go

common/math/integer_test.go

core/bench_test.go

core/block_validator.go

core/blockchain_test.go

core/chain_makers_test.go

core/state_transition.go

core/vm/common.go

core/vm/contract.go

core/vm/contracts.go

core/vm/evm.go

core/vm/gas.go

core/vm/gas_table.go

core/vm/gas_table_test.go

core/vm/instructions.go

core/vm/int_pool_verifier.go

core/vm/int_pool_verifier_empty.go

core/vm/interpreter.go