Log Message:
www/sqtop: update to 20170416

pkgsrc change

* Switch to GitHub from googlecode.
* Drop dependency to www/squid4.  This package is utility for Squid Cache
  but no dependency to specific version of squid.

As for changes from 2013-12-17, please refer
<https://github.com/paleg/sqtop/commits/master> in detail.