Allow failures on docs

Author: bbrala

.travis.yml

@@ -12,8 +12,10 @@ env:
     - JQUERY=1
     - JQUERY=2
     - JQUERY=3
+    allow_failures:
     - DOCUMENTATION=1
 
+
 install:
 - if [ "$JQUERY" ] ; then nvm install stable && npm install && npm install jquery@$JQUERY && npm test ; fi
 - if [ "$DOCUMENTATION" ] ; then cd documentation && composer global require couscous/couscous ; fi