plugin attachment: remove "path" from attachment once used: "path" refers to a local path of a file, we don't want to store it in database as the file may be in a temporary location, or even be a temporary file. So once the file has been uploaded, we remove it.

# XXX: the Monkey Patch is here and not in src/__init__ to avoir issues with pyjamas compilation
# TODO: remove this when changes are merged in Wokkel
from sat_tmp.wokkel import install
install()