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

examples/basic_usage.py

@@ -0,0 +1,12 @@
+# -*- coding: UTF-8 -*-
+
+from fbchat import Client
+from fbchat.models import *
+
+client = Client('<email>', '<password>')
+
+print('Own id: {}'.format(client.id))
+
+client.sendMessage('Hi me!', thread_id=self.id, thread_type=ThreadType.USER)
+
+client.logout()