Resolve "admin cannot unfinish visit"

Closes #386 (closed)

smash/web/templates/visits/details.html

@@ -70,7 +70,7 @@
                     <div class="col-md-6 form-group">
                         <label class="col-sm-4 control-label">
                             {% if visFinished %}
-                                <i title="Only visits with one inmediate future visit (without appointments) can be unfinished." class="fa fa-info-circle"></i> 
+                                <i title="Only visits with one immediate future visit (without appointments) can be unfinished." class="fa fa-info-circle"></i>
                             {% endif %}
                             Visit finished
                         </label>
@@ -95,7 +95,7 @@
 
                         {% if visFinished %}
                         <div class="col-sm-1">
-                            {% if "unfinish_visit" not in permissions %}
+                            {% if "delete_visit" not in permissions %}
                                 <div title="You don't have permissions to unfinish visits." class="btn btn-block btn-warning disabled">
                                     <i class="fa fa-undo"></i>
                                 </div>