Cleaning up imports
diff --git a/xos/configurations/devel/Makefile b/xos/configurations/devel/Makefile
index fce6ab6..2cbc1d0 100644
--- a/xos/configurations/devel/Makefile
+++ b/xos/configurations/devel/Makefile
@@ -5,7 +5,7 @@
test: common_cloudlab
echo "# Autogenerated -- do not edit" > Dockerfile
cat ../common/Dockerfile.common Dockerfile.devel >> Dockerfile
- cd ../../..; sudo docker build -t xos -f xos/configurations/devel/Dockerfile .
+ cd ../../..; sudo docker build --no-cache -t xos -f xos/configurations/devel/Dockerfile .
sudo docker run -d --add-host="ctl:$(MYIP)" -p 9999:8000 xos
bash ../common/wait_for_xos.sh
diff --git a/xos/helloworldservice/admin.py b/xos/helloworldservice/admin.py
index 3e67855..b77cc40 100644
--- a/xos/helloworldservice/admin.py
+++ b/xos/helloworldservice/admin.py
@@ -12,7 +12,7 @@
from suit.widgets import LinkedSelect
from core.admin import ServiceAppAdmin,SliceInline,ServiceAttrAsTabInline, ReadOnlyAwareAdmin, XOSTabularInline, ServicePrivilegeInline, TenantRootTenantInline, TenantRootPrivilegeInline
from core.middleware import get_request
-
+from core.models import User
from functools import update_wrapper
from django.contrib.admin.views.main import ChangeList
from django.core.urlresolvers import reverse