Update local manager app to user icons and app registry

apps/lock_manager/registry.py

@@ -0,0 +1,22 @@
+from __future__ import absolute_import
+
+from django.utils.translation import ugettext_lazy as _
+
+from smart_settings import LocalScope
+
+from .literals import DEFAULT_LOCK_TIMEOUT_VALUE
+from .icons import icon_lock
+
+name = 'lock_manager'
+label = _(u'Lock manager')
+description = _(u'Handles resource locking.')
+icon = icon_lock
+dependencies = ['app_registry', 'icons', 'smart_settings']
+settings = [
+    {
+        'name': 'DEFAULT_LOCK_TIMEOUT',
+        'default': DEFAULT_LOCK_TIMEOUT_VALUE,
+        'description': _(u'Default amount of time in seconds after which a lock will be automatically released.'),
+        'scopes': [LocalScope()]
+    }
+]