Set up logging module in examples

Without setting up the logging module, a god number of error conditions
and warnings will never be output by the library.  This is a common
pitfall to forget and it's not documented good enough the consequences
of not setting up the logging module when developing applications with
this library.

examples/deleted.py

@@ -1,4 +1,8 @@
 import discord
+import logging
+
+# Set up the logging module to output diagnostic to the console.
+logging.basicConfig()
 
 client = discord.Client()
 client.login('email', 'password')

examples/echo.py

@@ -1,4 +1,8 @@
 import discord
+import logging
+
+# Set up the logging module to output diagnostic to the console.
+logging.basicConfig()
 
 client = discord.Client()
 client.login('email', 'password')

examples/edits.py

@@ -1,5 +1,9 @@
 import discord
 import time
+import logging
+
+# Set up the logging module to output diagnostic to the console.
+logging.basicConfig()
 
 client = discord.Client()
 client.login('email', 'password')

examples/reply.py

@@ -1,4 +1,8 @@
 import discord
+import logging
+
+# Set up the logging module to output diagnostic to the console.
+logging.basicConfig()
 
 client = discord.Client()
 client.login('email', 'password')