TEST: make travis test with latest pydicom

Thanks to Nathaniel Smith for working out how to do shell conditionals
in the travis.yml file (See charlton/charlton repository)

Author: matthew-brett

.travis.yml

@@ -17,9 +17,18 @@ before_install:
     - popd
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
 install:
+    # This has to be on a single "virtual line" because of how Travis
+    # munges each line before executing it to print out the exit status.
+    # It's okay for it to be on multiple physical lines, so long as you remember:
+    # - There can't be any leading "-"s
+    # - All newlines will be removed, so use ";"s
+    - if [ "${TRAVIS_PYTHON_VERSION:0:1}" \< "3" ]; then
+        easy_install -U pydicom;
+        fi
     - python setup.py install
 # command to run tests, e.g. python setup.py test
 script:
     # Change into an innocuous directory and find tests from installation
-    - cd doc
+    - mkdir for_testing
+    - cd for_testing
     - nosetests `python -c "import os; import nibabel; print(os.path.dirname(nibabel.__file__))"`