[IMP] view.rng: allow @groups for <label> element
[IMP] view.rng: allow @groups for <label> element
MarkusTeufelberger/openobject-server,gisce/openobject-server,gisce/openobject-server,ovnicraft/openerp-server,MarkusTeufelberger/openobject-server,splbio/openobject-server,splbio/openobject-server,MarkusTeufelberger/openobject-server,splbio/openobject-server,ovnicraft/openerp-server,gisce/openobject-server