[FIX] clear the cache when deleting an entry in ir_model_data
[FIX] clear the cache when deleting an entry in ir_model_data

gisce/openobject-server,splbio/openobject-server,gisce/openobject-server,xrg/openerp-server,splbio/openobject-server,ovnicraft/openerp-server,MarkusTeufelberger/openobject-server,vnc-biz/openerp-server,MarkusTeufelberger/openobject-server,ovnicraft/openerp-server,MarkusTeufelberger/openobject-server,xrg/openerp-server,splbio/openobject-server,vnc-biz/openerp-server,gisce/openobject-server