Update travis

.travis.yml

@@ -23,7 +23,7 @@ before_install:
 script:
   -  .travis/precommit.sh
   -  docker run -i --rm -v "$PWD:/py_unittest" paddlepaddle/paddle:latest /bin/bash -c
-    'cd /py_unittest; sh .travis/unittest.sh'
+    'cd /py_unittest; sh .travis/unittest.sh' || exit $?
   - |
     if [[ "$TRAVIS_PULL_REQUEST" != "false" ]]; then exit 0; fi;
     if [[ "$TRAVIS_BRANCH" != "develop"  && ! "$TRAVIS_BRANCH" =~ ^v[[:digit:]]+\.[[:digit:]]+(\.[[:digit:]]+)?(-\S*)?$ ]]; then echo "not develop branch, no deploy"; exit 0; fi;