[SEBA-450] (part 1)

Refactoring, python3 compat, and tox tests on:

- xosconfig
- xosgenx
- xosutil

Eliminate use of yaml.load() which is unsafe, switch to yaml.safe_load()

More diagnostics during database migration

Change-Id: I0fae5782fca401603a7c4e4ec2b9269ad24bda97
diff --git a/lib/xos-util/tests/test_util.py b/lib/xos-util/tests/test_util.py
index 2b5be07..f4c0d3a 100644
--- a/lib/xos-util/tests/test_util.py
+++ b/lib/xos-util/tests/test_util.py
@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import absolute_import
+
 import os
 import unittest