don't fetch dev dependancies in travis

Minishlink · Minishlink · commit 85f8b5fec917 · 2016-03-09T18:53:48.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -7,6 +7,6 @@ php:
   - hhvm
 
 before_script:
-  - composer install --prefer-source -n
+  - composer install --prefer-source -n --no-dev
 
 script: phpunit -c phpunit.travis.xml
