Import py-trello library

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Add support for auth tokens

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Don't print '[ ]' on checklists

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Add support for config file

Only read the authentication data from there for now.

Signed-off-by: Joerg Roedel <jroedel@suse.de>