Log Message:
www/squidview: update to 0.86

Update squidview to 0.86.
pkgsrc change: switch to use squid4/Makefile.common instead of squid3.

0.86 February 2017
- fix clang compiler warning, thanks http://people.freebsd.org/~danilo/

0.85 Janurary 2017
- another result code, thanks Yuri Voinov

0.84 December 2016
- INM result code as 'U' - unmodified
  thanks Yuri Voinov

0.82-0.83: May 2016
- add more squid result codes
  thanks to Yuri Voinov for the suggestions, corrections

0.81: January 2015
- squid result code update
  thanks to Yuri Voinov for the suggestion