update travis

mdh34 · mdh34 · commit 31daaccdae93 · 2018-10-25T22:00:33.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -15,12 +15,8 @@ addons:
     packages:
       - libstdc++-5-dev
 
-cache:
-  directories:
-    - /tmp/liftoff
-
 install:
-  - npm install @elementaryos/houston
+  - npm i -g @elementaryos/houston
 
 script:
   - houston ci
