Rename scaffholding block to content_scaffholding for consistency

templates/web/login/layout/base-layout.html.twig

@@ -58,7 +58,7 @@
             <p class="chromeframe">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> or <a href="http://www.google.com/chromeframe/?redirect=true">activate Google Chrome Frame</a> to improve your experience.</p>
         <![endif]-->
         <div class="container full-height">
-            {% block scaffholding %}
+            {% block content_scaffholding %}
 
             {% endblock %}
             {% block footer_scaffholding %}

templates/web/login/layout/content-only-layout.html.twig

@@ -1,6 +1,6 @@
 {% extends "login/layout/base-layout.html.twig" %}
 
-{% block scaffholding %}
+{% block content_scaffholding %}
      <div class="row-fluid">
         <div class="span12">
             <div id="authentication-content">

templates/web/login/layout/middle-bar-layout.html.twig

@@ -1,6 +1,6 @@
 {% extends "login/layout/base-layout.html.twig" %}
 
-{% block scaffholding %}
+{% block content_scaffholding %}
      <div class="row-fluid full-height">
         <div class="span4 offset4 full-height">
             <div class="authentication-sidebar">

templates/web/login/layout/sidebar-layout.html.twig

@@ -4,7 +4,7 @@
     {{ app['phraseanet.registry'].get('GV_homeTitle')|default('Phraseanet') }}
 {% endblock %}
 
-{% block scaffholding %}
+{% block content_scaffholding %}
     <div class="row-fluid">
         <div class="span8 left-content">
             <div class="row-fluid">