[IMP] fix mistake done while merging ref-in-listviews, improve discrimination between ref-value and printable value
[IMP] fix mistake done while merging ref-in-listviews, improve discrimination between ref-value and printable value

* Removed a test on splitting on ',' yielding more than one value, which means we're going to loop on the name_get since they're all strings
* Improved value-detection: we should only name_get the reference field if the value is an actual reference value, meaning a model name, a ',' and an id. Used regex instead of naive split, so we don't match referenced names with a comma (e.g. 'Hubert de Vaucanson, Vicomte de Blois')
splbio/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,gisce/openerp-web,vnc-biz/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web