Added sonar coverage report

Adjusted the tox settings to generate the unit test coverage report to
be used by sonar.

Change-Id: I825b1770f1a27ceaafde181ce9d7cd44882e70c6
Issue-ID: VNFSDK-210
Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
diff --git a/tox.ini b/tox.ini
index 6e0b55c..393ea42 100644
--- a/tox.ini
+++ b/tox.ini
@@ -32,6 +32,9 @@
   py27: python2.7
 
 [testenv:py27]
-commands = 
-	pytest tests --cov-report term-missing --cov packager --cov cli
+commands =
+        coverage run --module pytest --junitxml xunit-results.xml
+        coverage xml --omit=".tox/py27/*","tests/*"
+        coverage report --omit=".tox/py27/*","tests/*"
+	#pytest tests --cov-report term-missing --cov packager --cov cli