added re-creation of permissions into step4 upgrade

rhodecode/lib/db_manage.py

@@ -172,6 +172,7 b' class DbManage(object):'
 
             def step_4(self):
                 print ('TODO:')
+                self.create_permissions()
                 self.klass.fixup_groups()
 
         upgrade_steps = [0] + range(curr_version + 1, __dbversion__ + 1)
@@ -483,6 +484,7 b' class DbManage(object):'
         ]
 
         for p in perms:
+            if not Permission.get_by_key(p):
             new_perm = Permission()
             new_perm.permission_name = p[0]
             new_perm.permission_longname = p[1]