Scroll CA stage panel on mobile

app/assets/stylesheets/pages/cycle_analytics.scss

 #cycle-analytics {
-  width: 1000px;
+  max-width: 1000px;
   margin: 24px auto 0;
   position: relative;
 
@@ -259,7 +259,14 @@
     }
   }
 
+  .stage-panel-container {
+    width: 100%;
+    overflow: auto;
+  }
+
   .stage-panel {
+    min-width: 968px;
+
     .panel-heading {
       padding: 0;
       background-color: transparent;

app/views/projects/cycle_analytics/show.html.haml

@@ -42,6 +42,7 @@
                   %li
                     %a{ "href" => "#", "data-value" => "90" }
                       Last 90 days
+    .stage-panel-container
       .panel.panel-default.stage-panel
         .panel-heading
           %nav.col-headers