* Update & fix JSON state tests.
* Update tests to be able to run ethtest at
021fe3d410773024cd5f0387e62db6e6ec800f32.
- Touch user in state
- Adjust transaction tests to new json format
* Switch to same commit for submodule ethereum/test as geth (next includes constantinople changes).
Added test `json_tests::trie::generic::TrieTests_trieanyorder` and a few
difficulty tests.
* Remove trietestnextprev as it would require to parse differently and
implement it.
* Support new (shitty) format of transaction tests.
* Ignore junk in ethereum/tests repo.
* Ignore incorrect test.
* Update to a later commit
* Move block number to a constant.
* Fix ZK2 test - touched account should also be cleared.
* Fix conflict resolution
* Update `add_license` script
* run script
* add `remove duplicate lines script` and run it
* Revert changes `English spaces`
* strip whitespaces
* Revert `GPL` in files with `apache/mit license`
* don't append `gpl license` in files with other lic
* Don't append `gpl header` in files with other lic.
* re-ran script
* include c and cpp files too
* remove duplicate header
* rebase nit
