[repo] kill rebuildinfered feature from Repository.set_schema
This clutters thing and is useless in most cases: when schema just have been
readen from the database or from the file-system, infered relations have just
be calculated.
The only use-case where it should be rebuilt is on migration (ie schema
modification by editing the meta-model using rql), so move this feature there.
debian/tmp/usr/bin/cubicweb-ctl usr/bin/
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/cwctl.py usr/lib/PY_VERSION/site-packages/cubicweb
debian/cubicweb-ctl.bash_completion etc/bash_completion.d/cubicweb-ctl