Update how Gettor processes emails

gettor.conf.json

 {
   "platforms": ["linux", "osx", "windows"],
-  "dbname": "gettor.db",
-  "email_parser_logfile": "email_parser.log",
+  "dbname": "/srv/gettor.torproject.org/home/gettor-hiro/gettor.db",
+  "email_parser_logfile": "/srv/gettor.torproject.org/home/gettor-hiro/log/email_parser.log",
   "email_requests_limit": 5,
   "sendmail_interval": 10,
   "sendmail_addr": "email@addr",

scripts/process_email

@@ -9,14 +9,15 @@
 # :license: This is Free Software. See LICENSE for license information.
 
 import sys
-sys.path.insert(0, '..')
-
+import os
 from twisted.python import log
 from twisted.internet import defer, reactor
 
-from gettor import EMAIL_PARSER_LOGFILE
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 from gettor.parse.email import EmailParser, AddressError, DKIMError
 
+EMAIL_PARSER_LOGFILE = "/srv/gettor.torproject.org/home/gettor-hiro/log/email_parser.log"
+
 @defer.inlineCallbacks
 def process_email(message):