RFR: 8026062 : (s) webrev.ksh: fix bug title web scraping, remove teamware, sac, "open bug" and wxfile support

[Mike Duigou]

Hello all;

This changeset revisits webrev's integration with bugs.openjdk.java.net to correct problems with the scraping of bug titles from jbs html. I also eliminated the now obsolete "-O" option since bugs are now all visible on the preferred bugs.openjdk.java.net system. 

While I was at it I finally eliminated the obsolete teamware, sac and wxfile support with the hopes that cruft removal may lower the bar to others contributing to webrev (yeah, it's not glamourous but we still need it).

http://cr.openjdk.java.net/~mduigou/JDK-8026062/0

Mike