Signal events from keymanager
Merge remote-tracking branch 'chiiph/feature/signal_events' into develop
Update to new soledad package scheme.
Merge remote-tracking branch 'drebs/feature/3487-split-soledad-into-common-client-and-server' into develop
Some packaging improvements

* versioneer all the things
* add parse_requirements
Merge remote-tracking branch 'kali/feature/improve_packaging' into develop
Fold in changes