Run with the latest tests (ethereumjs-testing to v1.2.3)

[holgerd77]

Run the VM on the latests tests included in ethereumjs-testing v1.2.3.

The new tests should now be on a greater part ready to be used for Constantinople testing, especially new SSTORE gas price calculations are now included through a complete test refill (consistency/accuracy not confirmed though yet).

[coveralls]

Coverage remained the same at 92.926% when pulling 502f2d0 on update-tests into f63c5b9 on master.

[holgerd77]

Blockchain tests are currently not working/invalid on Ethereum/tests, see latest discussions on https://gitter.im/ethereum/tests and it is not forseable when this will completely be fixed. I have therefore temporarily disabled blockchain tests as required and will merge, so that we can continue to work on Constantinople.

[holgerd77]

Excerpt with the Constantinople test result summary for reference:

1..4776
# tests 4776
# pass  3783
# fail  993