Fix css board can't be centered and add/delete cols button need to be visible on mobiles

client/css/framemo.css

@@ -41,3 +41,7 @@ h1 a.banner {
 #revisions-list {
     margin-top: 10px;
 }
+
+#add-col[style], #delete-col[style] {
+    display:inline !important; // No mouvehover effect on mobile
+}

client/script.js

@@ -1064,7 +1064,7 @@ $(document).ready(function(){
             .wrap(
                 '<div class="tab-content" style="margin:20px 0"><div role="tabpanel" class="tab-pane active" id="scrumblr"></div></div>'
             )
-            .css('margin','auto');
+            //.css('margin','auto');
 
         $('.names').css({'margin':'auto','width':'auto'}).addClass('pull-right');