Added missing libraries to Travis build.

.travis.yml

@@ -15,9 +15,10 @@ matrix:
 before_install:
 - sudo add-apt-repository -y ppa:biometrics/bob
 - sudo apt-get update -qq
-- sudo apt-get install -qq --force-yes libjpeg8-dev libnetpbm10-dev libpng12-dev libtiff4-dev libgif-dev libboost-all-dev libblitz1-dev libhdf5-serial-dev
+- sudo apt-get install -qq --force-yes libjpeg8-dev libnetpbm10-dev libpng12-dev libtiff4-dev libgif-dev libboost-all-dev libblitz1-dev libhdf5-serial-dev libvl-dev
 - sudo apt-get install -qq --force-yes dvipng texlive-latex-base texlive-latex-extra texlive-math-extra
-- if [ -n "${NUMPYSPEC}" ]; then sudo apt-get install -qq libatlas-dev libatlas-base-dev liblapack-dev gfortran; fi
+- sudo apt-get install -qq --force-yes libatlas-dev libatlas-base-dev liblapack-dev
+- if [ -n "${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 matplotlib; fi
 - pip install cpp-coveralls