Merge pull request #364 from owncloud/add-doc-testing

[Docs] Add skeleton dir path env variable in test run

docs/testing.md

@@ -82,6 +82,7 @@ TEST_SERVER_URL=http://localhost:9140 \
 TEST_EXTERNAL_USER_BACKENDS=true \
 TEST_OCIS=true \
 OCIS_REVA_DATA_ROOT=/var/tmp/reva/ \
+SKELETON_DIR=apps/testing/data/apiSkeleton \
 BEHAT_FILTER_TAGS='~@skipOnOcis'
 ```