* memorydb ub patch and other cleanup

* fix denote invocations

* move trie traits into trie module

* replace "denote" with shim

* triedb returns results and no longer panics

* fix warnings

* get ethcore compiling

* warn on trie errors in ethcore

* remove unsafety from node decoder

* restore broken denote behavior for this branch

* fix overlayrecent fallout

* fix triedb tests

* remove unwrap in state

* alter Trie::get to return Result<Option<_>>

* fix refcell error in require

* fix test warnings

* fix json tests

* whitespace

[ci:skip]

* Avoid unneeded match/indentation

* whitespace

* prettify map_or_else

* remove test warning

* Fixing account naming

* Using geth format for files. Avoid re-importing existing keys with different names.

* Adding expect for time format

* add inject to journaldb

* adjust docs

* add test; fix refcounteddb impl

* fewer panics, fail on invalid insertions or deletions

* fixed importing presale wallet with encseed longer than 96 bytes

* fixed incorrect pkcs unpadding in decrypting presale wallet

* Making ConfirmationsQueue a bit more generic [WiP]

* Generalizing cofirmations

* New confirmations types - tests

* Separating transaction type in queue. Closes #1310

* Handling sign requests

* Speeding up tests

* Renaming methods

* eth_postSign

* Bumping ui

* Development mode for Signer

* CLI option for signer-dev

* Renaming CLI option

* Make obvious that CLI option is insecure.

[ci:skip]

* Additional warning over security

* Mining fixes.

- Use queue to determine whether we're mining
- Kick stale hash rates

Fixes #1794
Fixes #1641

* Fix tests.

* Address grumbles.

* removed frombytes stuff

* removed jsonrpc handler from nano

DRYing build scripts

Allow code from spec json

* fix nano interface

* add nano tests to target

* Place thread name in the log output

...But only when more than info.
Closes #1463

* simpler method

* fixed compilation

* Fix warnings

* fix remaining tests

* add to ci and fix test.sh

dynamic keys pickup

ipc version bump

Prevent deadlock on trace GC

* removed configure_cache method

* generic cache_manager struct

* fixed #1743, tracing caches are cleared

* removed deadlocks in garbage_collect, implemented HeapSizeOf for traces

* trace cache config

* fixed carbage typo

* Return storage as H256 from RPC.

* Fix test.

* add an instant sealing engine

* add sealing engine tests

* rename to InstantSeal

* update name in json

* whitespace

[ci:skip]