Remodelage léger du prompt playlists

src/Muzich/CoreBundle/Resources/public/css/main.css

   height: 23px;
 }
 
+div.playlists_prompt a.close_playlists_prompt
+{
+  float: right;
+  margin-top: -5px;
+  margin-right: -5px;
+}
+
 ul.form-errors
 {
   margin-left: 10px;

src/Muzich/CoreBundle/Resources/public/js/muzich.js

     onOpen: function(link){},
     onClose: function(link){}
   });
+  
+  $('div.playlists_prompt a.close_playlists_prompt').live('click', function(){
+     $('div.playlists_prompt').remove();
+     return false;
+  });
    
 });
 

src/Muzich/PlaylistBundle/Resources/views/Show/prompt.html.twig

 
+<a href="#" class="close_playlists_prompt">
+  <img src="{{ asset('/img/icon_close.png') }}" alt="close" />
+</a>
+
 <div class="create_playlist">
-  <h2>{{ 'playlist.create_and_add'|trans({}, 'elements') }}</h2>
+  <h2 class="nomargintop">{{ 'playlist.create_and_add'|trans({}, 'elements') }}</h2>
   <form action="{{ path('playlist_add_element_and_create', { 'element_id' : element_id }) }}" method="post">
     {% include 'MuzichPlaylistBundle:Show:form.html.twig' %}
   </form>
 
 <div>
   {% if playlists|length %}
-    <h2 class="nomargintop">{{ 'playlist.add_to'|trans({}, 'elements') }}</h2>
+    <h2>{{ 'playlist.add_to'|trans({}, 'elements') }}</h2>
     <ul class="playlists_for_element">
       {% for playlist in playlists %}
         <li class="playlist">