Fix security rules for deletion (cgscop#36)

security/security_rules.xml

@@ -9,15 +9,18 @@
             <field name="model_id" ref="calendar.model_calendar_event"/>
             <field name="domain_force">[('ur_id','=',user.company_id.ur_id.id)]</field>
             <field name="groups" eval="[(6, 0, [ref('base.group_user')])]"/>
-            <field eval="True" name="global"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="False"/>
+            <field name="perm_create" eval="False"/>
+            <field name="perm_unlink" eval="False"/>
         </record>
         <record id="calendar.calendar_event_rule_my" model="ir.rule">
             <field name="name">My Calendar Events</field>
             <field name="model_id" ref="calendar.model_calendar_event"/>
             <field name="domain_force">[('user_id','=',user.id)]</field>
             <field name="groups" eval="[(6, 0, [ref('base.group_user')])]"/>
-            <field name="perm_read" eval="False"/>
-            <field name="perm_write" eval="False"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
             <field name="perm_create" eval="True"/>
             <field name="perm_unlink" eval="True"/>
         </record>