Test other jinja2 version

.travis.yml

@@ -18,7 +18,7 @@ before_install:
 - sudo apt-get install -qq --force-yes libboost-all-dev libblitz1-dev libatlas-dev libatlas-base-dev liblapack-dev libhdf5-serial-dev;
 - if [ -n "${NUMPYSPEC}" ]; then sudo apt-get install -qq gfortran; fi
 - if [ -n "${NUMPYSPEC}" ]; then pip install --upgrade pip setuptools; fi
-- if [ -n "${NUMPYSPEC}" ]; then pip install --find-links http://wheels.astropy.org/ --find-links http://wheels2.astropy.org/ --use-wheel numpy$NUMPYSPEC sphinx nose jinja2==2.7.1; fi
+- if [ -n "${NUMPYSPEC}" ]; then pip install --find-links http://wheels.astropy.org/ --find-links http://wheels2.astropy.org/ --use-wheel numpy$NUMPYSPEC sphinx nose jinja2>=2.3,<2.7; fi
 - pip install cpp-coveralls
 install:
 - python bootstrap.py