the rendering code of the pivot table didn't use $ in jquery variables, this commit fixes that issue and slightly simplify their names. bzr revid: ged@openerp.com-20140508111311-kargzvzlttutwt47
the rendering code of the pivot table didn't use $ in jquery variables, this commit fixes that issue and slightly simplify their names. bzr revid: ged@openerp.com-20140508111311-kargzvzlttutwt47