[ctxcomponents] RQLCtxComponent: refactor init_rendering/render_body to ease overriding init_rendering now simply execute the query to get result set to be displayed, and store it in .cw_rset attribute. Links to be displayed by default are now computed in render_body. So you may now simply customise what to be displayed by overriding render_body.

#!/usr/bin/env python
from cubicweb.cwctl import run
import sys
run(sys.argv[1:])