diff --git a/common/static/common/templates/discussion/forum-action-answer.underscore b/common/static/common/templates/discussion/forum-action-answer.underscore
index 4f9c2bd8fd..77a2ff1376 100644
--- a/common/static/common/templates/discussion/forum-action-answer.underscore
+++ b/common/static/common/templates/discussion/forum-action-answer.underscore
@@ -1,5 +1,5 @@
 <li class="actions-item">
-    <button class="btn action-button action-answer" role="checkbox" aria-checked="false">
+    <button class="btn-link action-button action-answer" role="checkbox" aria-checked="false">
         <span class="sr"><%- gettext("Mark as Answer") %></span>
         <span class="action-label" aria-hidden="true">
             <span class="label-unchecked"><%- gettext("Mark as Answer") %></span>
diff --git a/lms/djangoapps/commerce/migrations/0005_auto_20160831_0247.py b/lms/djangoapps/commerce/migrations/0005_auto_20160831_0247.py
deleted file mode 100644
index fd94a1d798..0000000000
--- a/lms/djangoapps/commerce/migrations/0005_auto_20160831_0247.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('sites', '0001_initial'),
-        ('commerce', '0004_auto_20160531_0950'),
-    ]
-
-    operations = [
-        migrations.RemoveField(
-            model_name='commerceconfiguration',
-            name='receipt_page',
-        ),
-        migrations.AddField(
-            model_name='commerceconfiguration',
-            name='site',
-            field=models.ForeignKey(on_delete=django.db.models.deletion.SET_NULL, blank=True, to='sites.Site', null=True),
-        ),
-    ]
diff --git a/lms/djangoapps/commerce/models.py b/lms/djangoapps/commerce/models.py
index 70c2f7b9ef..586a69ade6 100644
--- a/lms/djangoapps/commerce/models.py
+++ b/lms/djangoapps/commerce/models.py
@@ -1,15 +1,10 @@
 """
 Commerce-related models.
 """
-from django.contrib.sites.models import Site
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
 from config_models.models import ConfigurationModel
-from openedx.core.djangoapps.site_configuration.models import SiteConfiguration
-
-from logging import getLogger
-logger = getLogger(__name__)  # pylint: disable=invalid-name
 
 
 class CommerceConfiguration(ConfigurationModel):
@@ -38,41 +33,15 @@ class CommerceConfiguration(ConfigurationModel):
             'Specified in seconds. Enable caching by setting this to a value greater than 0.'
         )
     )
-    site = models.ForeignKey(
-        Site,
-        on_delete=models.SET_NULL,
-        blank=True,
-        null=True
+    receipt_page = models.CharField(
+        max_length=255,
+        default='/commerce/checkout/receipt/?orderNum=',
+        help_text=_('Path to order receipt page.')
     )
 
     def __unicode__(self):
         return "Commerce configuration"
 
-    def get_receipt_page_url(self, order_number):
-        """
-        Return absolute receipt page URL.
-
-        Arguments:
-            order_number (str): Order number
-
-        Returns:
-            Absolute receipt page URL, consisting of site domain and site receipt page.
-        """
-        site = self.site
-        if site:
-            try:
-                return '{site_domain}{receipt_page_url}{order_number}'.format(
-                    site_domain=site.domain,
-                    receipt_page_url=site.configuration.receipt_page_url,  # pylint: disable=no-member
-                    order_number=order_number
-                )
-            except AttributeError:
-                logger.info("Site Configuration is not enabled for site (%s).", site)
-        return '{default_receipt_page_url}{order_number}'.format(
-            default_receipt_page_url=SiteConfiguration.DEFAULT_RECEIPT_PAGE_URL,
-            order_number=order_number
-        )
-
     @property
     def is_cache_enabled(self):
         """Whether responses from the Ecommerce API will be cached."""
diff --git a/lms/djangoapps/commerce/tests/test_models.py b/lms/djangoapps/commerce/tests/test_models.py
deleted file mode 100644
index 8c593718da..0000000000
--- a/lms/djangoapps/commerce/tests/test_models.py
+++ /dev/null
@@ -1,64 +0,0 @@
-""" Tests for commerce models. """
-
-import ddt
-
-from django.test import TestCase
-
-from commerce.models import CommerceConfiguration
-from microsite_configuration.tests.factories import SiteFactory
-from openedx.core.djangoapps.site_configuration.models import SiteConfiguration
-from openedx.core.djangoapps.site_configuration.tests.factories import SiteConfigurationFactory
-
-
-@ddt.ddt
-class CommerceConfigurationModelTests(TestCase):
-    """ Tests for the CommerceConfiguration model. """
-
-    def setUp(self):
-        """
-        Create CommerceConfiguration object
-        """
-        super(CommerceConfigurationModelTests, self).setUp()
-        self.site = SiteFactory()
-        self.order_number = "TEST_ORDER_NUMBER"
-
-    def configure_commerce(self, is_configured, is_default_page):
-        """
-        Helper for creating specific Commerce Configuration.
-
-        Arguments:
-            is_configured (bool): Indicates whether or not the Site has Site Configuration.
-            is_default_page (bool): Indicates whether or not the LMS receipt page is used
-
-        Returns:
-            Commerce configuration.
-        """
-        if not is_default_page:
-            if is_configured:
-                SiteConfigurationFactory.create(
-                    site=self.site,
-                    receipt_page_url='receipt/page/url',
-                )
-
-        return CommerceConfiguration.objects.create(
-            enabled=True,
-            site=self.site if not is_default_page else None
-        )
-
-    @ddt.data((True, False), (False, False), (False, True))
-    @ddt.unpack
-    def test_get_receipt_page_url_site_configured(self, is_configured, is_default_page):
-        commerce_configuration = self.configure_commerce(is_configured, is_default_page)
-        receipt_page_url = commerce_configuration.get_receipt_page_url(self.order_number)
-        expected_receipt_page_url = '{site_domain}{receipt_page_url}{order_number}'.format(
-            site_domain=self.site.domain,
-            receipt_page_url=self.site.configuration.receipt_page_url,  # pylint: disable=no-member
-            order_number=self.order_number
-        ) if (is_configured and not is_default_page) else '{default_receipt_page_url}{order_number}'.format(
-            default_receipt_page_url=SiteConfiguration.DEFAULT_RECEIPT_PAGE_URL,
-            order_number=self.order_number
-        )
-        self.assertEqual(
-            receipt_page_url,
-            expected_receipt_page_url
-        )
diff --git a/lms/djangoapps/student_account/views.py b/lms/djangoapps/student_account/views.py
index 78e6f4d852..d0c52341c2 100644
--- a/lms/djangoapps/student_account/views.py
+++ b/lms/djangoapps/student_account/views.py
@@ -347,7 +347,7 @@ def get_user_orders(user):
                                     'order_date': strftime_localized(
                                         date_placed.replace(tzinfo=pytz.UTC), 'SHORT_DATE'
                                     ),
-                                    'receipt_url': commerce_configuration.get_receipt_page_url(order['number'])
+                                    'receipt_url': commerce_configuration.receipt_page + order['number']
                                 }
                                 user_orders.append(order_data)
                             except KeyError:
diff --git a/lms/static/sass/discussion/elements/_navigation.scss b/lms/static/sass/discussion/elements/_navigation.scss
index 51519f6d84..1b660fc5c3 100644
--- a/lms/static/sass/discussion/elements/_navigation.scss
+++ b/lms/static/sass/discussion/elements/_navigation.scss
@@ -166,6 +166,11 @@
     background-color: $forum-color-background;
     margin-bottom: 0;
 
+    &:last-child {
+        // Overrides pattern library default li:last-child style
+        border-bottom: 1px solid $forum-color-border;
+    }
+
     .forum-nav-thread-link {
         @include border-left(3px solid transparent);
         display: flex;
diff --git a/openedx/core/djangoapps/site_configuration/migrations/0003_siteconfiguration_receipt_page_url.py b/openedx/core/djangoapps/site_configuration/migrations/0003_siteconfiguration_receipt_page_url.py
deleted file mode 100644
index 35eb9a8cda..0000000000
--- a/openedx/core/djangoapps/site_configuration/migrations/0003_siteconfiguration_receipt_page_url.py
+++ /dev/null
@@ -1,19 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('site_configuration', '0002_auto_20160720_0231'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='siteconfiguration',
-            name='receipt_page_url',
-            field=models.CharField(default=b'/commerce/checkout/receipt/?orderNum=', help_text='Path to order receipt page.', max_length=255),
-        ),
-    ]
diff --git a/openedx/core/djangoapps/site_configuration/models.py b/openedx/core/djangoapps/site_configuration/models.py
index e9c5d3a5ff..61c05eb044 100644
--- a/openedx/core/djangoapps/site_configuration/models.py
+++ b/openedx/core/djangoapps/site_configuration/models.py
@@ -7,7 +7,6 @@ from django.db import models
 from django.contrib.sites.models import Site
 from django.db.models.signals import post_save
 from django.dispatch import receiver
-from django.utils.translation import ugettext_lazy as _
 
 from django_extensions.db.models import TimeStampedModel
 from jsonfield.fields import JSONField
@@ -26,8 +25,6 @@ class SiteConfiguration(models.Model):
         site (OneToOneField): one to one field relating each configuration to a single site
         values (JSONField):  json field to store configurations for a site
     """
-    DEFAULT_RECEIPT_PAGE_URL = '/commerce/checkout/receipt/?orderNum='
-
     site = models.OneToOneField(Site, related_name='configuration')
     enabled = models.BooleanField(default=False, verbose_name="Enabled")
     values = JSONField(
@@ -35,11 +32,6 @@ class SiteConfiguration(models.Model):
         blank=True,
         load_kwargs={'object_pairs_hook': collections.OrderedDict}
     )
-    receipt_page_url = models.CharField(
-        max_length=255,
-        default=DEFAULT_RECEIPT_PAGE_URL,
-        help_text=_('Path to order receipt page.')
-    )
 
     def __unicode__(self):
         return u"<SiteConfiguration: {site} >".format(site=self.site)