Merge pull request #114 from charris/skip-on-duplicate-upload

Make travis skip on duplicate uploads.

Author: mattip

.travis.yml

@@ -90,5 +90,5 @@ after_success:
       fi
     - pip install git+https://github.com/Anaconda-Server/[email protected];
     - if [ -n "${TOKEN}" ] ; then
-        anaconda -t ${TOKEN} upload -u ${ANACONDA_ORG} ${TRAVIS_BUILD_DIR}/wheelhouse/*.whl;
+        anaconda -t ${TOKEN} upload --skip -u ${ANACONDA_ORG} ${TRAVIS_BUILD_DIR}/wheelhouse/*.whl;
       fi