fix clean on RO package creation

Change-Id: I85982a0aed17d13ec09b88c4aa8640af34cbeb95
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/RO/Makefile b/RO/Makefile
index 15dce71..437ce0e 100644
--- a/RO/Makefile
+++ b/RO/Makefile
@@ -23,6 +23,8 @@
 
 clean:
 	rm -rf dist deb_dist osm_ro-*.tar.gz osm_ro.egg-info .eggs
+	find osm_ro -name '*.pyc' -delete
+	find osm_ro -name '*.pyo' -delete
 
 package:
 #	apt-get install -y python-stdeb
diff --git a/devops-stages/stage-build.sh b/devops-stages/stage-build.sh
index 5ac3f7a..a2f565a 100755
--- a/devops-stages/stage-build.sh
+++ b/devops-stages/stage-build.sh
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+set -ex
+
 rm -rf deb_dist/*
 mkdir -p deb_dist