The test is failing the 32bit build and the function
is not used anywhere.

Further fixes to block test wrapper

Treat hexnums as big.Int instead of int64. Closes #762

core: transaction fixes

Block test improvements

You can now specify `null` as a way of saying "not interested in this
topic, match all". core.Filter assumes the zero'd address to be the
wildcard. JSON rpc assumes empty strings to be wildcards.

Remove "minGasPrice" field from JSON responses. Closes. #754

All nonce error handling has been moved to the worker

When worker encounters a gas limit error, subsequent txs should be
ignored from that particular account. This will prevent:

1. Nonce errors been thrown all around
2. The "Known tx" error. Closes #719
3. Repeated contract address. Closes #731

* Move go test wrapper for block tests from cmd/geth to tests
* Fix logic for when tests are valid or not, by adding correct
  validations for expected valid/invalid blocks
* Change block insertion helper to work on single blocks
* Add one test case for each file in BlockTests and comment out
  the tests which are currently failing
* Add Skip call in all block tests in lieu of performance fixes
  around ethash cache which are needed before it will be fast enough
  to start / stop the node between each test

trivial fix for: Broken link for detailed go build instructions #661

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admin.StopRPC added to console

cmd/geth, cmd/utils: add cli flags for pprof and whisper

Merge branch 'frontier/natspec' of https://github.com/ethersphere/go-ethereum into ethersphere-frontier/natspec

* Add fixes to parsing and converting of fields in tx tests
* Correct logic in tx tests; validation of fields and correct
  logic for when RLP decoding works/fails and when this is
  expected or not
* Rename files for consistency
* Add block tests wrapper to run block tests with go test