Release [2020.04] - dates and feature requests

Dear RIOTers,

The release dates for the upcoming release cycle are fixed as follows:

- 01.04.2020 - soft feature freeze, for high impact features

- 09.04.2020 - hard feature freeze, for all features

- 30.04.2020 - Release date

Please send your suggestions for features which you would like to see merged during this release cycle.

Best regards, and happy hacking!

Leandro Lanzieri