Added baseline for sphinx documentation and on2FACode event

The docs are still very WIP, but they should be functional. Just
execute `make html` in the docs folder, and you should be able to
navigate to `/docs/_build/html` and view it in your browser

examples/keepbot.py

@@ -0,0 +1,56 @@
+# -*- coding: UTF-8 -*-
+
+from fbchat import log, Client
+from fbchat.models import *
+
+# Change this to your group id
+old_thread_id = '1234567890'
+
+# Change these to match your liking
+old_color = ThreadColor.MESSENGER_BLUE
+old_emoji = '👍'
+old_title = 'Old school'
+old_nicknames = {
+    '12345678901': 'Old School user nr. 1',
+    '12345678902': 'Old School user nr. 2',
+    '12345678903': 'Old School user nr. 3',
+    '12345678904': 'Old School user nr. 4'
+}
+
+class KeepBot(Client):
+    def onColorChange(self, mid, author_id, new_color, thread_id, thread_type, ts, metadata, msg):
+        if old_thread_id == thread_id and old_color != new_color:
+            log.info("{} changed the thread color. It will be changed back".format(author_id))
+            self.changeThreadColor(old_color, thread_id=thread_id)
+
+    def onEmojiChange(self, mid, author_id, new_emoji, thread_id, thread_type, ts, metadata, msg):
+        if old_thread_id == thread_id and new_emoji != old_emoji:
+            log.info("{} changed the thread emoji. It will be changed back".format(author_id))
+            # Not currently possible in `fbchat`
+            # self.changeThreadEmoji(old_emoji, thread_id=thread_id)
+
+    def onPeopleAdded(self, added_ids, author_id, thread_id, msg):
+        if old_thread_id == thread_id and author_id != self.uid:
+            log.info("{} got added. They will be removed".format(added_ids))
+            for added_id in added_ids:
+                self.removeUserFromGroup(added_id, thread_id=thread_id)
+
+    def onPersonRemoved(self, removed_id, author_id, thread_id, msg):
+        # No point in trying to add ourself
+        if old_thread_id == thread_id and removed_id != self.uid and author_id != self.uid:
+            log.info("{} got removed. They will be re-added".format(removed_id))
+            self.addUsersToGroup(removed_id, thread_id=thread_id)
+
+    def onTitleChange(self, mid, author_id, new_title, thread_id, thread_type, ts, metadata, msg):
+        if old_thread_id == thread_id and old_title != new_title:
+            log.info("{} changed the thread title. It will be changed back".format(author_id))
+            self.changeGroupTitle(old_title, thread_id=thread_id)
+
+    def onNicknameChange(self, mid, author_id, changed_for, new_nickname, thread_id, thread_type, ts, metadata, msg):
+        if old_thread_id == thread_id and changed_for in old_nicknames:
+            log.info("{} changed {}'s' nickname. It will be changed back".format(author_id, changed_for))
+            # Not currently possible in `fbchat`
+            # self.changeNickname(old_nicknames[changed_for], changed_for, thread_id=thread_id, thread_type=thread_type)
+
+client = KeepBot("<email>", "<password>")
+client.listen()