Make it a bit harder to run into the LC_ALL thing

This behavior is stupid. Respecting LC_ALL, or anything else for that
matter, over the encoding fucking noted in the fucking file is a bad
decision, and someone should feel bad. I don't know why it makes things
break in the specific and bizarre way it does, but it does, and there's
no possible good reason for it.

Closes sopel-irc#984. Fuck.

contrib/sopel.service

@@ -11,6 +11,7 @@ ExecStart=/usr/bin/sopel -c /etc/sopel.cfg
 Restart=on-failure
 RestartPreventExitStatus=2
 RestartSec=30
+Environment=LC_ALL=en_US.UTF-8
 
 [Install]
 WantedBy=multi-user.target

sopel/__init__.py

@@ -1,14 +1,25 @@
 # coding=utf-8
+# ASCII ONLY IN THIS FILE THOUGH!!!!!!!
+# Python does some stupid bullshit of respecting LC_ALL over the encoding on the
+# file, so in order to undo Python's ridiculous fucking idiocy, we have to have
+# our own check.
+
 # Copyright 2008, Sean B. Palmer, inamidst.com
 # Copyright 2012, Elsie Powell, http://embolalia.com
-# Copyright © 2012, Elad Alfassa <[email protected]>
+# Copyright 2012, Elad Alfassa <[email protected]>
 #
 # Licensed under the Eiffel Forum License 2.
 
 from __future__ import unicode_literals, absolute_import, print_function, division
+import os
+import sys
+if hasattr(os, "getenv") and os.getenv("LC_ALL") == "C":
+    print('WARNING!!! LC_ALL is set to "C", which makes Python do stupid '
+          'things. If you get strange errors, please unset it, or set it to '
+          'something like "en_US.UTF-8".', file=sys.stderr)
+
 
 from collections import namedtuple
-import os
 import re
 import time
 import traceback