* Data doesn't need anymore to be converted to ActivityStream format to
be saved (this was taken from Pleroma and not at all a good idea here)
* Everything saved when creating an event is inserted into PostgreSQL in
a single transaction
Use Upload Media logic from Pleroma
Backend changes for picture upload
Move AS <-> Model conversion to separate module
Front changes
Downgrade apollo-client: https://github.com/Akryum/vue-apollo/issues/577
Signed-off-by: Thomas Citharel <tcit@tcit.fr>
