* almost there

* add missing dependencies (#4)

* add missing dependencies

* remove from2

* all tests pass

* only use sodium-universal

* fix typo

* be standard

* fix tests (#3)

* fix @ralpththeninja's comments

* do message encoding in writer.js

* Cb node (#5)

* Call cb with node

* common cb

* Map nodes

* missing standard dep (#6)

* update pkg json

* use compressed protobuf encoding

* reduce cache

* log -> feed

* use a write lock until we add batching

* simplify hash code

* support valueEncoding

* refactor

* heads -> clock

* pass in storage providers and do not rely on ordering of feeds

* create local writer just in time

* minor cleanup

* add readme

* fix version