Merge pull request #303 from primer/shawnbot/publish-as-primer

Move access tokens to .travis.yml; don't fail CI on forks

.travis.yml

@@ -2,8 +2,12 @@ language: node_js
 node_js:
   - 7
 
-before_install:
-  - npm config set "//registry.npmjs.org/:_authToken=\${NPM_API_KEY}"
+env:
+  global:
+    # npm
+    - secure: "EZewKKWQXmtCwPtYrPZq4OQblv2OyXR61qBIl3pOxGNVG2BCjD6VOgSaiYqkA9Qbt+ihfwQkiiLvTB68gbvRSiBFV9i+XLzKzt4S8CDI5RhTLAxZB3eQFVZRYzldchzWI4sdNhTvYS1kYXmsXQZD6vJmPSnFvOI/ddfzqvnNL4M="
+    # github
+    - secure: "J+1oWjvvXjyrwkY/4IFWKdN/weFmQcPwlRuFG4R0Gb3rYe4nqtC9l68sJvmS8asc8dQMhOhcUZCH6sjvo7l2WD4NuK4umPSbs+rJNUsfbvH4pZjStQIj/3ll1OfQelGDWAYQWhIfciYY4F3Bp0ZWTfKOppLQ2AVIYu1fPVXDdlo="
 
 before_script:
   - lerna bootstrap
@@ -12,6 +16,8 @@ script:
   - npm test
 
 after_success:
+  # this will short-circuit the publish step if it fails to interpolate $NPM_API_KEY
+  - npm config set "//registry.npmjs.org/:_authToken=\${NPM_API_KEY}"
   - script/after_success
 
 deploy: