cubicweb-gpgcheck #1213372 basic requirements [done]

we want:

  • suggests/cooperate with email cube
  • signature verification at import time
  • in database flag for verification status
  • public key import mechanism (pk associated to cwuser)
  • impersonate signed mail if signatory is cwuser
  • idem for comments
prioritynormal
typeenhancement
done in0.1.0
load3.000
load left0.000
closed by<not specified>