[dataimport] make it possible to insert 'empty' (i.e. no-attrs) entities
In such cases (e.g. ternary relations), generated RQL must be
'INSERT MyEntityType' instead of 'INSERT MyEntityType:'
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/web usr/lib/PY_VERSION/site-packages/cubicweb
debian/tmp/usr/share/cubicweb/cubes/shared/data usr/share/cubicweb/cubes/shared
debian/tmp/usr/share/cubicweb/cubes/shared/wdoc usr/share/cubicweb/cubes/shared