Make defaults for BooleanFields.

According to django-admin check,

   (1_6.W002) BooleanField does not have a default value.
    HINT: Django 1.6 changed the default value of BooleanField from False to None. See https://docs.djangoproject.com/en/1.6/ref/models/fields/#booleanfield for more information.

www/conservancy/apps/contacts/models.py

@@ -6,7 +6,7 @@ class ContactEntry(models.Model):
     Hopefully this will be deprecated soon"""
 
     email = models.EmailField() # should make it unique, but we really cannot
-    subscribe_conservancy = models.BooleanField()
+    subscribe_conservancy = models.BooleanField(default=False)
 
     class Meta:
         ordering = ('email',)

www/conservancy/apps/events/models.py

@@ -33,7 +33,7 @@ class Event(models.Model):
 
     title = models.CharField(max_length=400)
     date = models.DateField()
-    date_tentative = models.BooleanField()
+    date_tentative = models.BooleanField(default=False)
     datetime = models.CharField("Date and Time", max_length=300, blank=True)
     slug = models.SlugField(unique_for_year='date')
     description = models.TextField(blank=True)
@@ -81,7 +81,7 @@ class EventMedia(models.Model):
     # verify_exists removed https://docs.djangoproject.com/en/1.7/releases/1.4/
     remote = models.URLField(blank=True,
                              help_text="Remote URL of the resource.  Required if 'local' is not given.")
-    novel = models.BooleanField(help_text="Is it a new piece of media or another form of an old one?  If it is new it will be included in the event-media RSS feed and shown on the front page for a bit.")
+    novel = models.BooleanField(help_text="Is it a new piece of media or another form of an old one?  If it is new it will be included in the event-media RSS feed and shown on the front page for a bit.", default=False)
 
     date_created = models.DateTimeField(auto_now_add=True)
     date_last_modified = models.DateTimeField(auto_now=True)

www/conservancy/apps/news/models.py

@@ -90,7 +90,7 @@ class ExternalArticle(models.Model):
     # verify_exists removed https://docs.djangoproject.com/en/1.7/releases/1.4/
     url = models.URLField(blank=True)
     date = models.DateField()
-    visible = models.BooleanField(help_text="Whether to display on website")
+    visible = models.BooleanField(help_text="Whether to display on website", default=True)
 
     tags = models.ManyToManyField(ExternalArticleTag, null=True, blank=True)
     people = models.ManyToManyField(Person, null=True, blank=True)

www/conservancy/apps/summit_registration/models.py

@@ -9,7 +9,7 @@ class SummitRegistration(models.Model):
     email = models.EmailField(blank=True)
     phone = models.CharField(max_length=100, blank=True)
     date_created = models.DateField(auto_now_add=True)
-    cle_credit = models.BooleanField(null=True)
+    cle_credit = models.BooleanField(default=True)
 
     class Meta:
         ordering = ('name',)