* created the dir crate in util
* moved code from ethstore/src/dir/paths.rs to dir crate
* rename dir module in ethstore to accounts_dir to distinguish it
from the dir crate
* changes after @tomusdrw on #6952
* Address book for local addresses.
* Simple disk-backed address book.
* Add test and keep file with keys.
* View and import Geth keys.
* Fix test.
* Fix up author info.
[ci:skip]
* bump rust-crypto
* initial version of account provider utilizing secret store
* update lazy_static to latest version
* AccountProvider accounts method
* new AccountProvider tests in progress
* basic tests for new AccountProvider
* ethcore compiles with new account provider and secret store
* ethcore-rpc build now compiling with new AccountProvider
* most rpc tests passing with new accounts_provider
* fixed basic_authority tests
* fixed eth_transaction_count rpc test
* fixed mocked/eth.rs tests
* fixed personal tests
* fixed personal signer rpc tests
* removed warnings
* parity compiling fine with new sstore
* fixed import direction
* do not unlock temporarily when we have the password
* removed TODO in account import
* display warning on auto account import failure
* fixed compiling of ethstore on windows
* ethstore as a part of parity repo
* added ethkey
