milo: fix running steps

appengine/cmd/milo/frontend/static/buildbot/css/default.css

 /* Copyright 2015 The LUCI Authors. All rights reserved.
  * Use of this source code is governed under the Apache License, Version 2.0
  * that can be found in the LICENSE file.
  */
 
 body.interface {
   margin-left: 30px;
   margin-right: 30px;
   margin-top: 20px;
   margin-bottom: 50px;
@@ skipping 412 matching lines @@
   background-color: #e88;
   border-color: #A77272;
 }
 
 .failure-again {
   color: #000;
   background-color: #eA9;
   border-color: #A77272;
 }
 
+.status-Running {
+  color: #000;
+  background-color: #fd3;

[estaab, 2016/06/16 20:13:45]

#fff6c6 as per buildbot?

[Ryan Tseng, 2016/06/16 20:22:37]

old (our version) buildbot uses fff6c6, new(er) versions of buildbot uses fd3. 
I'm impartial to which one we use, but I think i stole^W borrowed this
default.css from the most recent version of buildbot.

+  border-color: #C5C56D;
+}
+
 .status-Warnings {
   color: #FFFFFF;
   background-color: #fa3;
   border-color: #C29D46;
 }
 
 .status-InfraFailure {
   color: #FFFFFF;
   background-color: #c6c;
   border-color: #ACA0B3;
@@ skipping 16 matching lines @@
   background-color: #c6c;
   border-color: #ACA0B3;
 }
 
 .start {
   color: #000;
   background-color: #ccc;
   border-color: #ccc;
 }
 
 .running,.waiting,td.building {

[Ryan Tseng, 2016/06/16 20:21:13]

Just use this

[nodir, 2016/06/16 21:08:04]

Done.

   color: #000;
   background-color: #fd3;
   border-color: #C5C56D;
 }
 
 .paused {
   color: #FFFFFF;
   background-color: #8080FF;
   border-color: #dddddd;
 }
@@ skipping 212 matching lines @@
 }
 
 form.command_forcebuild .force-nested > .label {
   font-weight: bold;
   display: list-item;
 }
 
 form.command_forcebuild .force-any .force-text {
   display: inline;
 }