X84

- This is the *final* release of x/84, there will be no more updates!!
- update all setup.py requirements to the latest, here's hoping the
direct downstream dependencies honor SEMVER and this continues to
work for many more years to come!
- removed bbs.modem api and xmodem dependencies, it is not used
- removed 'weather' from main menu, it is broken
- removed 'sysop' from main menu, the "x84 message net" is dead
- added 'ct', a 24-bit color example program (from blessed)

- bugfix: upgraded six version to 1.9.0 to meet blessed requirements
- enhancement: added 'raw' flag to x84.bbs.door.Door to send raw output to
the session.write method. useful for incorporating external file transfer
programs.
- refactor: all example scripts now prefer getterminal().inkey() rather than
deprecated getch(), getch() returns multiple types, None for timeout,
keycode as integer for application keys, or string for characters.
inkey() interface always returns a string, sometimes empty, with
.code attribute for application keys.
- This refactoring allows us to use the latest version of 'blessed'
library.

- enhancement: ability to connect to irc servers with password protection
using 'password' setting in 'irc' section of default.ini
- enhancement: pipe codes for colors/modes are now supported in ircchat.py.
- bugfix: msgarea.py fix unread message count (only include messages the
user can view)

- bugfix: previously the 'stop/more/continuous' prompt was not pausing news
output in the appropriate place. prompt_pager also deals with wrapped lines
much better now.
- bugfix: OpenSSL has changed a method signature in their library, which
broke the versions of cffi and cryptography x84 relies on. increased the
required versions of these libraries.

- enhancement: [system] option scriptpath now supports a comma
separated list of directories in which customizations are stored.

- bugfix: weather.py fix incorrect postal code return from Accu Weather.
Changed the default to populate search by city/state instead of
postal since this is no longer returned from accu weather correctly.
Also re-added missing save location field that was outside of
while loop to funtion exit.
- bugfix: tetris.py fix for sending terminal font sequence prior to
ansi screen display instead of after.