Add fontawesome 4 css classes

ckanext/privatedatasets/templates/package/snippets/package_basic_fields.html

@@ -49,7 +49,7 @@
           {% endfor %}
         </select>
         <span class="info-block info-inline">
-          <i class="icon-info-sign"></i>
+          <i class="icon-info-sign fa fa-info-circle"></i>
           {% trans %}
             Private datasets can only be accessed by certain users, while public datasets can be accessed by anyone. 
           {% endtrans %}
@@ -68,7 +68,7 @@
           {% endfor %}
         </select>
         <span class="info-block info-inline">
-          <i class="icon-info-sign"></i>
+          <i class="icon-info-sign fa fa-info-circle"></i>
           {% trans %}
             Searchable datasets can be searched by anyone, while not-searchable datasets can only be accessed by entering directly its URL.
           {% endtrans %}

ckanext/privatedatasets/templates/snippets/acquire_button.html

@@ -10,6 +10,6 @@ Example:
 
 #}
 <a href={{ url_dest }} class="btn btn-mini" target="_blank">
-    <i class="icon-shopping-cart"></i>
+    <i class="icon-shopping-cart fa fa-shopping-cart"></i>
     {{ _('Acquire') }}
 </a>