Import attachments related activities from Wekan and Trello. Thanks to GhassenRjab ! Closes #1157
Import attachments related activities from Wekan and Trello.
Thanks to GhassenRjab ! Closes #1157

wekan/wekan,ddanssaert/wekan,johnleeming/wekan,jtickle/wekan,libreboard/libreboard,johnleeming/wekan,wekan/wekan,johnleeming/wekan,jtickle/wekan,mario-orlicky/wekan,mario-orlicky/wekan,ddanssaert/wekan,GhassenRjab/wekan,wekan/wekan,nztqa/wekan,johnleeming/wekan,libreboard/libreboard,GhassenRjab/wekan,GhassenRjab/wekan,wekan/wekan,wekan/wekan,nztqa/wekan,mario-orlicky/wekan,jtickle/wekan,ddanssaert/wekan,nztqa/wekan