Merge pull request #1282 from obscuren/state-cleanup

common/types.go

core/block_processor.go

core/block_processor_test.go

core/state/dump.go

core/state/state_object.go

core/state/state_test.go

core/state/statedb.go

core/state_transition.go

core/transaction_pool.go

core/vm/vm.go

tests/block_test_util.go

tests/vm/gh_test.go

xeth/types.go

xeth/xeth.go