[FIX] account_followup data forcecreate false

Backport of 7.0 fix from cef081d09aea928f7abaa9acf400ffa74cd06f32

bzr revid: al@openerp.com-20121218182753-1m4mboe5g51dv1y3
[FIX] Bad previous fix

forcecreate attribute has been removed from the token data in the
revision cef081d09aea928f7abaa9acf400ffa74cd06f32 and not inserted.