update travis.yml

Author: jacobwilliams

.travis.yml

@@ -4,17 +4,18 @@ python:
   - 2.7
 
 before_install:
+  - sudo apt-add-repository --yes ppa:ubuntu-toolchain-r/test
   - sudo apt-get update
   - sudo apt-get install gfortran-4.9
-  - ln -fs /usr/bin/gfortran-4.9 gfortran
-  - pip install FoBiS.py
+  - sudo ln -fs /usr/bin/gfortran-4.9 gfortran
+  - sudo pip install FoBiS.py
   - wget http://rfsber.home.xs4all.nl/Robo/robodoc-4.99.41.tar.gz
   - gunzip robodoc-4.99.41.tar.gz
   - tar -xvf robodoc-4.99.41.tar
   - cd robodoc-4.99.41
   - configure
   - make
-  - make install
+  - sudo make install
   - cd ../
   - export PATH=".:$PATH"