* Various improvements to tracing & diagnostics.
- Manage possibility of `Account` not having code for `PodAccount`
- New RPC: `trace_sendRawTransaction`
- See raw transaction dump when inspecting over RPC
* Fix test
* Remove one of the dupe error messages
* Remove unneeded `&`s
* Reformat and extremely minor optimisation
* Minor optimisation
* Remove unneeded let
* Fix tests.
* Additional fix.
* Minor rename.
[ci:skip]
* Bowing to the pressure.
* removed old json-tests
* simplify folds in triehash.rs
* removed unused json_aid
* removed unused squeeze.rs
* json branching tests for trie
* removing todos from util
* separated UsingQueue and Table
* further cleanup, removing unused code
* serde serialization of hash moved to rpc module
* uint wrapper for rpc in progress
* serialization of uint moved to rpc module
* updated eth-secp256k1
* updated igd, serde is no longer dependency of util
* loading trie consensus tests
* renamed aliases in rpc imports
* Groundwork for basic VM tracing.
* RPC endpoint for VM tracing and ser/de types ready.
* Create VMTracer trait.
* Rearchitected VM tracing to reflect existing tracing.
Should more or less work now.
* Integrated VM tracing into JSONRPC.
* Fix ethcore module tests.
* Add tests for VM tracing.
* Fix consensus test code.
* Fix mock tests.
* Added VM trace information for post-execution stuff.
* Fix max-value calls and add "creates" field to getTransaction.
* Tests for VM tracing.
* Don't implement the trait with unimplemented.
* Remove invlaid comment.
* Fix tests.
Tomasz Drwięga
Robert Habermeier
Arkadiy Paronyan
Gav Wood
Gav Wood
Marek Kotewicz
Nikolay Volf