Remove safe_eval

We convert all the fields that were storing python code into PYSON.
We add a pyson attribute on field tag to store PYSON value.

issue4416
review6971002

dunning.xml

@@ -161,14 +161,14 @@ this repository contains the full copyright notices and license terms. -->
             id="act_dunning_form_domain_draft">
             <field name="name">Draft</field>
             <field name="sequence" eval="10"/>
-            <field name="domain">[('state', '=', 'draft')]</field>
+            <field name="domain" eval="[('state', '=', 'draft')]" pyson="1"/>
             <field name="act_window" ref="act_dunning_form"/>
         </record>
         <record model="ir.action.act_window.domain"
             id="act_dunning_form_domain_done">
             <field name="name">Done</field>
             <field name="sequence" eval="20"/>
-            <field name="domain">[('state', '=', 'done')]</field>
+            <field name="domain" eval="[('state', '=', 'done')]" pyson="1"/>
             <field name="act_window" ref="act_dunning_form"/>
         </record>
         <record model="ir.action.act_window.domain"
@@ -186,7 +186,8 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.action.act_window" id="act_dunning_party">
             <field name="name">Dunnings</field>
             <field name="res_model">account.dunning</field>
-            <field name="domain">[('line.party', 'in', Eval('active_ids'))]</field>
+            <field name="domain"
+                eval="[('line.party', 'in', Eval('active_ids'))]" pyson="1"/>
         </record>
         <record model="ir.action.act_window.view" id="act_dunning_party_view1">
             <field name="sequence" eval="10"/>
@@ -214,7 +215,9 @@ this repository contains the full copyright notices and license terms. -->
             <field name="global_p" eval="True"/>
         </record>
         <record model="ir.rule" id="rule_dunning1">
-            <field name="domain">[('company', '=', user.company.id if user.company else None)]</field>
+            <field name="domain"
+                eval="[('company', '=', Eval('user', {}).get('company', None))]"
+                pyson="1"/>
             <field name="rule_group" ref="rule_group_dunning"/>
         </record>