SEBA-282 xosgenx filtering by app or model;
provide a default argument class for XOSProcessor;
remove tabs;
rename unit tests missed by nose2

Change-Id: I07b782982b6733f8828b8a5a72807326f430b1a5
diff --git a/containers/chameleon/Dockerfile.chameleon b/containers/chameleon/Dockerfile.chameleon
index c0fefa3..0b197e7 100644
--- a/containers/chameleon/Dockerfile.chameleon
+++ b/containers/chameleon/Dockerfile.chameleon
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # xosproject/chameleon
-FROM xosproject/xos-base:2.1.17
+FROM xosproject/xos-base:2.1.18
 
 # xos-base already has protoc and dependencies installed