Update to 2.90, restoring compatibility with the server

PR:		ports/194590
sysutils/tw_cli: clean up, including removal of pkg-plist

PR:		194774
Submitted by:	takefu (airport.fm)
Approved by:	Just fix it
Update MediaBrowser port to latest upstream 3.0.5424.1 stable.
Also tidy up a few items in the port recommended by josh4trunks.
This includes improving rc script to minimise customisation (maximise
use of rc.subr), moving the storage of the MediaBrowser database files
to /var/db/mediabrowser and adding some more comments for users.

Add an entry to UPDATING explaining the database directory move from
/usr/local/mediabrowser to /var/db/mediabrowser.

The default MediaBrowser database/configuration/logs/media metadata
storage directory has moved from /usr/local/mediabrowser to
/var/db/mediabrowser. Users are advised either to move the contents of
the old directory to the new location, or to add a mediabrowser_data_dir
entry to /etc/rc.conf.

PR:		194904
Submitted by:	Ben Woods
- fix MASTER_SITES
japanese/nethack34: Fix segfault on amd64 among other things

PR:		194611
Submitted by:	WATANABE Kazuhiro
Update audio/libsidplayfp to upstream version 1.6.0

Bump PORTREVISION of dependent ports

PR:		194626
Submitted by:	liangtai.s16@gmail.com (maintainer)
Update to 9.8o.