* Move miner away from ethcore.
* Fix ethcore to use miner/transaction.
* Fix tests and warnings.
* fixed incorrect merge of the test in the documentation
* Node-health to a separate crate.
* Initialize node_health outside of dapps.
* Expose health over RPC.
* Bring back 412 and fix JS.
* Add health to workspace and tests.
* Fix compilation without default features.
* Fix borked merge.
* Revert to generics to avoid virtual calls.
* Fix node-health tests.
* Add missing trailing comma.
This is a huge change, which includes some changes to replace code that
originally cloned to reuse allocations instead. The updated
`elastic-array` crate renames its consuming `Vec`-conversion method to
`into_vec`, which means that I can do a simple
`sed -i 's/to_vec/into_vec/'` and then fix the compilation errors.
This commit is probably a minor performance win and definitely a
significant readability win.
