Update MASTER_SITES and fix unfetchable

> ws4py-0.3.4.tar.gz doesn't seem to exist in /usr/ports/distfiles/.

> Attempting to fetch http://www.defuze.org/oss/ws4py/ws4py-0.3.4.tar.gz

fetch: http://www.defuze.org/oss/ws4py/ws4py-0.3.4.tar.gz: No address record

> Attempting to fetch http://distcache.twn.FreeBSD.org/local-distfiles/%SUBDIR%/ws4py-0.3.4.tar.gz

fetch: http://distcache.twn.FreeBSD.org/local-distfiles/%SUBDIR%/ws4py-0.3.4.tar.gz: Bad Request

> Couldn't fetch it - please try to retrieve this

> port manually into /usr/ports/distfiles/ and try again.

• Error code 1

Stop.
make: stopped in /usr/ports/www/py-ws4py

Approved by: portmgr (blanket)