Travis-CI workaround for multiprocessing.Queue OSError

See travis-ci/travis-cookbooks#155 for background

Author: mumrah

.travis.yml

@@ -11,7 +11,10 @@ before_install:
   - cd -
 
 install:
-  pip install .
+  - pip install .
+  # Deal with issue on Travis builders re: multiprocessing.Queue :(
+  # See https://github.com/travis-ci/travis-cookbooks/issues/155
+  - sudo rm -rf /dev/shm && sudo ln -s /run/shm /dev/shm
 
 script:
   - python -m test.test_unit