fixup! make UI component really optional

Multiple results where not properly displayed. Also make debug_json work as well

dream/platform/static/css/demo-new.css

@@ -316,7 +316,7 @@ path, ._jsPlumb_endpoint {
   visibility: hidden;
 }
 
-#debug textarea {
+#debug_json textarea {
   width:100%;
 }
 

dream/platform/static/index.html

@@ -74,7 +74,7 @@
       <div id="job_schedule_spreadsheet"></div>
       <div id="job_gantt"></div>
 
-      <div id="debug">
+      <div id="debug_json" style="display: none">
         <div class="six columns alpha">
           <div>Input</div>
           <textarea rows="20" cols="47" id="json_output"></textarea>

dream/platform/static/src/dream.js

@@ -269,8 +269,7 @@
       $($('li.result')[idx]).addClass('active');
       var result = JSON.parse($("#json_result").val())[idx]['result'];
       if (configuration['Dream-Configuration'].gui.debug_json){
-        // TODO: does not work
-        $("#result_zone").show();
+        $("#debug_json").show();
       }
       if (configuration['Dream-Configuration'].gui.station_utilisation_graph){
         $("#graph_zone").show();

dream/platform/static/src/dream_launcher.js

@@ -75,6 +75,9 @@
       if (configuration['Dream-Configuration'].gui.wip_spreadsheet){
         $("#wip_spreadsheet").show();
       }
+      if (configuration['Dream-Configuration'].gui.debug_json){
+        $("#debug_json").show();
+      }
 
       try {
         // spreadsheets
@@ -152,6 +155,7 @@
           function (data) {
             $("#loading_spinner").hide();
             $("#run_simulation").button('enable');
+            $("#result_zone").show();
             $('#result_list').empty();
             if (data['success']) {
               $("#json_result").val(JSON.stringify(data['success'],