[IMP] Use unicode font for arrows

bzr revid: fme@openerp.com-20110915210818-15hrzmv24xdimisu

addons/web/static/src/css/base.css

@@ -338,6 +338,12 @@ label.error {
     text-decoration: none;
     text-shadow: #fff 0 1px 0;
 }
+.openerp a.oe_secondary_submenu_item.submenu.opened span:before {
+    content: "\25be";
+}
+.openerp a.oe_secondary_submenu_item.submenu span:before {
+    content: "\25b8";
+}
 
 /* Header */
 .openerp .header {

addons/web/static/src/xml/base.xml

@@ -395,9 +395,7 @@
 <t t-name="Menu.secondary.children">
     <t t-set="level" t-value="level + 1"/>
     <a href="#" t-att-class="classname + (menu.children.length ? ' submenu' : ' leaf')" t-att-data-menu="menu.children.length ? undefined : menu.id">
-        <span t-attf-style="padding-left: #{level - 1}em">
-            <t t-esc="menu.children.length ? '+' : '-'"/> <t t-esc="menu.name"/>
-        </span>
+        <span t-attf-style="padding-left: #{level - 1}em"> <t t-esc="menu.name"/></span>
     </a>
     <div t-attf-class="oe_secondary_submenu oe_secondary_submenu_level_#{level}" t-if="menu.children.length" style="display: none">
         <t t-foreach="menu.children" t-as="menu">