Add command for running lastfm imports

vrobbler/apps/scrobbles/management/commands/import_from_lastfm.py

@@ -0,0 +1,7 @@
+from django.core.management.base import BaseCommand, no_translations
+from vrobbler.apps.scrobbles.utils import import_lastfm_for_all_users
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        import_lastfm_for_all_users()