Add withFilter to make Producer compatible with scala 2.12 for compre…

…hension

Completely avoid util conversions (#775)

Problem

As noted in #774 Twitter util deprecated some conversions. However, summingbird is on an older version of util that does not have the new APIs.

Solution

Avoid the conversions sugar completely.

Provide `newVersion` in `modifyBeforeWrite` API (#772)

As a follow up to #771 we want also to provide `newVersion` as an argument to `modifyBeforeWrite`.

Provide `newVersion` in `modifyBeforeWrite` API

Add `modifyBeforeWrite` in `VersionedBatchStore` (#771)

In order to better support different GDPR use cases in Twitter we need to have a way to do modification for stored `(K, V)` pairs in Summingbird's Scalding platform.

In this PR I've added `modifyBeforeWrite` protected method which suits this needs in `VersionedBatchStore`.

Support Scalding's 0.18.x branch (#769)

* Fix compilation

* Simplify code

* Use scalding 0.18.0-RC1

* Bump dagon version

* Fix repos

Fix incompatibilities between storm and heron api

Releasing 0.11.0-RC1

Releasing 0.10.0-RC2

Releasing 0.10.0-RC1