[FIX] hr: missing ref in tests

bzr revid: rco@openerp.com-20111222133814-e80cid84xjq372dl

addons/hr/test/hr_demo.yml

@@ -3,7 +3,7 @@
     no_of_employee: 0.0
     no_of_recruitment: 5.0
 -
-  !record {model: hr.employee, id: niv, view: False}:
+  !record {model: hr.employee, id: employee_niv, view: False}:
     address_id: base.main_address
     company_id: base.main_company
     department_id: dep_rd

addons/hr/test/open2recruit2close_job.yml

@@ -24,7 +24,7 @@
   I assign the job position to a newly hired employee
 -
   !python {model: hr.employee}: |
-    self.write(cr, uid, [ref('niv')], {'job_id':ref('job_developer')})
+    self.write(cr, uid, [ref('employee_niv')], {'job_id':ref('job_developer')})
 -
   Now I dont want to recruit new employee for this position. so I mark it as Old.
 -