• convert to optionsNG

while here:

• make it depend on www/py-beautifulsoup32 instead, because it is the something that this code is looking for
• do not bump PORTREVISION, because this dependency is not default
• tab -> space in pkg-descr:WWW

PR: 170190
Submitted by: Lung-Pin Chang <changlp at cs.nctu.edu dot tw> (maintainer)