Ajout script maj table security

core/trunk/modif_security.sql

+ALTER TABLE "security" ADD COLUMN rights_bitmask integer;
+ALTER TABLE "security" ADD COLUMN mr_start_date timestamp without time zone;
+ALTER TABLE "security" ADD COLUMN mr_stop_date timestamp without time zone;
+ALTER TABLE "security" ADD COLUMN where_target character varying(15) NOT NULL DEFAULT 'DOC';
+ALTER TABLE "security" DROP CONSTRAINT security_pkey;
+ALTER TABLE "security" ADD COLUMN security_id serial NOT NULL;
+ALTER TABLE "security" ADD PRIMARY KEY (security_id);