Fixing OS specific commands for travis

.travis.yml

@@ -1,4 +1,4 @@
-#language: python
+language: python
 
 matrix:
   include:
@@ -10,16 +10,18 @@ matrix:
       python: 2.7 
     - os: osx
       osx_image: xcode8.2
+      language: generic
 
 before_install:
-  - sudo apt-get update
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update               ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get update     ; fi
   - curl -L http://bootstrap.saltstack.org | sudo sh -s -- git develop
 
 install:
   - sudo mkdir -p /srv/salt/states
   - sudo cp -r salty/base/* /srv/salt/states
   - sudo cp -r .travis/minion /etc/salt/minion
-  - sudo service salt-minion restart
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo service salt-minion restart; fi
   - sudo sh .travis/grains.sh
 
 script: