* separate migration from util and make its dependencies into libs:

* snappy
* kvdb
* error
* common

* renamed common -> macros

* util error does not depend on snappy module

* ethsync does not depend on util nor ethcore_error

* nibbleslice and nibblevec merged with patricia_trie crate

* removed unused dependencies from util

* util journaldb traits does not need to be public

* util_error

* fixed ethcore compile error

* ignore .swo files

* Update chain.rs

This reverts commit 899538ae.

Marek Kotewicz authored Sep 05, 2017 and Arkadiy Paronyan committed Sep 05, 2017

* fixed master

* Revert "Merge pull request #6370 from paritytech/light-poa"

This reverts commit 3c60f99d, reversing
changes made to b731ccea.

* Fix whitespace.

* Update copyright years/owner.

* Push release only for tags.