* use NoValues cursor where possible
* add ctx
* fix broken logs
* rebase master
* rebase master
* simplify generators
* hack to measure space distribution
* naive epoch and chunking implementation
* make stateless loop cancelable
* make stateless loop cancelable
* remove one rlp layer
* eth64 protocol support - add forkId to status message
* introduce code node
* replace codeMap with code touches
* fix a comment
* fixups to tests
* fix compile error
* fix getnodedata tests
* add tests and test stubs
* add more test stubs
* add test method bodies
* add and fix more tests on trie for new codenode
* add test change code between blocks
* fix crash in stateless
* remove unneded files
* remove comment
* fix deleted account code
* fix resolve set builder for code nodes