[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.

from os.path import join
assert __file__.endswith(join('scripts', 'script1.py')), __file__
assert '__main__' == __name__, __name__
assert [] == __args__, __args__