Merge pull request #1181 from obscuren/txpool_fixes

cmd/geth/admin.go

cmd/geth/js_test.go

cmd/utils/flags.go

common/big.go

common/natspec/natspec_e2e_test.go

core/block_processor.go

core/block_processor_test.go

core/chain_makers.go

core/chain_manager.go

core/chain_manager_test.go

core/genesis.go

core/transaction_pool.go

core/transaction_pool_test.go

core/types/block.go

core/types/transaction_test.go

core/vm/contracts.go

core/vm/environment.go

core/vm/main_test.go

core/vm/opcodes.go

core/vm/vm_test.go