[SEBA-450] (part 2)

Add tox testing support on additional XOS library modules:

- xos-api
- xos-kafka (has no tests)
- xos-migrate (has no tests)
- xos-synchronizer

Change-Id: I98195bc9747971d3515882d517affe058dd86ac5
diff --git a/lib/xos-synchronizer/xossynchronizer/loadmodels.py b/lib/xos-synchronizer/xossynchronizer/loadmodels.py
index 1c1f8bd..43b429e 100644
--- a/lib/xos-synchronizer/xossynchronizer/loadmodels.py
+++ b/lib/xos-synchronizer/xossynchronizer/loadmodels.py
@@ -12,9 +12,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import absolute_import
+
 import os
-from xosconfig import Config
+
 from multistructlog import create_logger
+from xosconfig import Config
 
 log = create_logger(Config().get("logging"))
 
@@ -89,4 +92,3 @@
         result = self.api.dynamicload.UnloadModels(request)
 
         return result
-