Steam market refresh script: Workaround bug in recent Firefox

Apparently in recent versions of Firefox doing an:
<a href="javascript:something_that_returns_a_value()">link</a>
will replace the page with the value that function returned!

Add a call to noop() at the end of the javascript link since that
doesn't return a value and will stop Firefox from being quite so lame.
Merge branch 'master' into temp-merge