Merge branch 'travis/cache-composer' of https://github.com/mrrobot47/site-command into mrrobot47-travis/cache-composer

Author: mbtamuli

.travis.yml

@@ -25,6 +25,10 @@ script:
 after_script:
   - cat /opt/easyengine/ee.log
 
+cache:
+  directories:
+    - $HOME/.composer/cache
+
 notifications:
   email:
     on_success: never