Use negative col attribute

issue2090
review33661002

trytond/ir/view/module_form.xml

@@ -9,7 +9,7 @@ this repository contains the full copyright notices and license terms. -->
     <field name="dependencies" colspan="4"/>
     <label name="state"/>
     <field name="state" readonly="1"/>
-    <group col="2" colspan="2" id="button">
+    <group col="-1" colspan="2" id="button">
         <button string="Mark for Upgrade" name="upgrade"/>
         <button string="Mark for Deactivation (beta)" name="deactivate"/>
         <button string="Mark for Activation" name="activate"/>

trytond/res/view/user_application_form.xml

@@ -11,7 +11,7 @@ this repository contains the full copyright notices and license terms. -->
     <field name="application"/>
     <label name="state"/>
     <field name="state"/>
-    <group id="buttons" colspan="2" col="2">
+    <group id="buttons" colspan="2" col="-1">
         <button name="cancel" string="Cancel" icon="tryton-cancel"/>
         <button name="validate_" string="Validate" icon="tryton-ok"/>
     </group>