Advanced Ip filtering (#4424)

* Added IP Bans configuration

* Fixing warnings

* Added ban enabled option and unit tests

* Fixed py34 tox

* http: requested changes fix

* Requested changes fix

tests/helpers/test_config_validation.py

@@ -1,6 +1,6 @@
 """Test config validators."""
 from collections import OrderedDict
-from datetime import timedelta
+from datetime import timedelta, datetime, date
 import enum
 import os
 from socket import _GLOBAL_DEFAULT_TIMEOUT
@@ -358,6 +358,17 @@ def test_time_zone():
     schema('UTC')
 
 
+def test_datetime():
+    """Test date time validation."""
+    schema = vol.Schema(cv.datetime)
+    for value in [date.today(), 'Wrong DateTime', '2016-11-23']:
+        with pytest.raises(vol.MultipleInvalid):
+            schema(value)
+
+    schema(datetime.now())
+    schema('2016-11-23T18:59:08')
+
+
 def test_key_dependency():
     """Test key_dependency validator."""
     schema = vol.Schema(cv.key_dependency('beer', 'soda'))