Convert all apps to use the new class based settings

apps/main/conf/settings.py

@@ -1,28 +1,27 @@
 """Configuration options for the main app"""
 
 from django.utils.translation import ugettext_lazy as _
-from smart_settings.api import register_setting
+from smart_settings.api import Setting, SettingNamespace
 
-register_setting(
-    namespace=u'main',
-    module=u'main.conf.settings',
+namespace = SettingNamespace('main', _(u'Main'), module='main.conf.settings')
+
+Setting(
+    namespace=namespace,
     name=u'SIDE_BAR_SEARCH',
     global_name=u'MAIN_SIDE_BAR_SEARCH',
     default=False,
     description=_(u'Controls whether the search functionality is provided by a sidebar widget or by a menu entry.')
 )
 
-register_setting(
-    namespace=u'main',
-    module=u'main.conf.settings',
+Setting(
+    namespace=namespace,
     name=u'DISABLE_HOME_VIEW',
     global_name=u'MAIN_DISABLE_HOME_VIEW',
     default=False,
 )
 
-register_setting(
-    namespace=u'main',
-    module=u'main.conf.settings',
+Setting(
+    namespace=namespace,
     name=u'DISABLE_ICONS',
     global_name=u'MAIN_DISABLE_ICONS',
     default=False,