* Async RPC
* Limiting number of transactions in queue
* Fixing tests
* Bumping serde and jsonrpc-core
* serde updated to 0.8
* fixed failing tests
* Bumping ipc server
* Fixing API for endpoints
* Experimenting with tests without --release mode
* executive tracer builds flat traces without intermediate struct
* temporarilt commented out tests for traces
* fixed new way of building trace address
* fixed new way of building trace address
* updating state tests with flat tracing in progress
* fixed flat tracing tests
* fixed compiling ethcore-rpc with new flat traces
* removed warnings from ethcore module
* remove unused data structures
* 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