cubicweb-medicalexp #4524480 importers directory is ont included in source dist [validation pending]

prioritynormal
typebug
done in0.12.3
load0.100
load left0.000
closed by#a172f6caf16f [pkg] include importers directory in source dist (closes #4524480)
patch[pkg] include importers directory in source dist (closes #4524480) [applied]