0.34.0rc1

Related release message to the ASF community

Dear all,

The source release 0.34.0 RC1 for Apache Superset is baked and available at:
https://dist.apache.org/repos/dist/dev/incubator/superset/, public keys are available at https://dist.apache.org/repos/dist/release/incubator/superset/KEYS

We're using the 0.34 branch as the base for this first ASF release as opposed to 0.33 in previous attempts. I think all license-related issues have been ironed out in our dependency, here's the FOSSA report. We're still ironing out our release process, so please bear with us and help if you can.

As I went along, I documented the process in [yet-to-be-merged] RELEASING/README.md in the repo, latest edits here #8016 . As part of `RELEASING/`, we ship docker files to help test releases in a reproducible way.

For context the `0.34` release branch was cut at SHA 9233a63, that was merged on master on Aug 8th 2019. From that common ancestor, the following list of commit was added as cherry-picks. The SHAs in the list bellow reference the cherries on the release branch, PR number are available to get more details.

<no cherries yet on the 0.34 branch>