[manual] Deconfigure standalone feedback bot, replacing it with a worker.

Steps needed:
 - puppet apply on staging/prod when deployed to respective sites
 - puppet apply on bots.z.n when deployed to prod
 - copy /var/tmp/.feedback-bot-ticket-number from bots to staging

(imported from commit 2c943dac8d871809b0997a4484f508ec5b078bcd)

bots/feedback-bot

@@ -1,92 +0,0 @@
-#!/usr/bin/env python
-from __future__ import absolute_import
-
-import sys
-from os import path
-import logging
-
-sys.path.append(path.join(path.dirname(__file__), '../api'))
-import zulip
-sys.path.append(path.join(path.dirname(__file__), '../zproject'))
-import local_settings
-
-class StreamLogger(object):
-    """
-    Give a file-like interface to a logger instance.
-    """
-    def __init__(self, logger, log_level=logging.INFO):
-        self.logger = logger
-        self.log_level = log_level
-        self.buffer = ""
-
-    def write(self, message):
-        self.buffer += message
-
-        if message[-1] == "\n":
-            self.logger.log(self.log_level, self.buffer.rstrip())
-            self.buffer = ""
-
-logging.basicConfig(filename="/var/log/zulip/feedback-bot.log",
-                    level=logging.DEBUG, format="%(asctime)s %(levelname)s\t%(message)s")
-
-# The API prints to stdout, so capture and format those messages as well.
-stdout_logger = StreamLogger(logging.getLogger("stdout"), logging.INFO)
-sys.stdout = stdout_logger
-
-stderr_logger = StreamLogger(logging.getLogger("stderr"), logging.ERROR)
-sys.stderr = stderr_logger
-
-prod_client = zulip.Client(
-    email="feedback@zulip.com",
-    api_key=local_settings.FEEDBACK_BOT_KEY,
-    verbose=True,
-    site="https://api.zulip.com")
-staging_client = zulip.Client(
-    email="feedback@zulip.com",
-    api_key=local_settings.FEEDBACK_BOT_KEY,
-    verbose=True,
-    site="https://staging.zulip.com/api")
-
-def get_ticket_number():
-    fn = '/var/tmp/.feedback-bot-ticket-number'
-    try:
-        ticket_number = int(open(fn).read()) + 1
-    except:
-        ticket_number = 1
-    open(fn, 'w').write('%d' % ticket_number)
-    return ticket_number
-
-def forward_message(message):
-    if message["type"] != "private" or len(message["display_recipient"]) != 2:
-        return
-
-    if "sender_domain" in message:
-        subject = "feedback: %s (%s)" % (message["sender_email"], message["sender_domain"])
-    else:
-        subject = "feedback from %s" % message["sender_email"],
-    if len(subject) > 60:
-        subject = subject[:57].rstrip() + "..."
-
-    ticket_number = get_ticket_number()
-    content = '@support, Please ack this new request.'
-    content += '\n~~~'
-    content += '\nticket Z%03d' % (ticket_number,)
-    content += '\nsender: %s' % (message['sender_full_name'],)
-    content += '\nemail: %s' % (message['sender_email'],)
-    if 'sender_domain' in message:
-        content += '\nrealm: %s' % (message['sender_domain'],)
-    content += '\n~~~'
-
-    content += '\n\n'
-    content += message['content']
-
-    forwarded_message = {
-        "type": "stream",
-        "to": "support",
-        "subject": subject,
-        "content": content,
-        }
-    staging_client.send_message(forwarded_message)
-    logging.info("Forwarded feedback from %s" % (message["sender_email"],))
-
-prod_client.call_on_each_message(forward_message)