Removed deprecations and new event system, improved other things

Removed deprecations
Removed new event system
Added documentation for all events
Added FAQ
Changed Client.uid to Client.id
Improved User model
Prepared for support of pages

docs/index.rst

@@ -36,6 +36,9 @@ Currently `fbchat` support Python 2.7, 3.4, 3.5 and 3.6:
 This means doing the exact same GET/POST requests and tricking Facebook into thinking it's accessing the website normally.
 Therefore, this API requires the credentials of a Facebook account.
 
+.. note::
+    If you're having problems, please check the :ref:`faq`, before asking questions on Github
+
 .. warning::
     We are not responsible if your account gets banned for spammy activities,
     such as sending lots of messages to people you don't know, sending messages very quickly,
@@ -60,3 +63,4 @@ Overview
     testing
     api
     todo
+    faq