Make Travis to release the npm package

Add .npmignore to include dist/*.js files to the npm release (but exclude zip files). See https://docs.travis-ci.com/user/deployment/npm/

.gitignore

@@ -1,14 +1,10 @@
-
-.DS_Store
-
-node_modules/*
+bower_components/
+coverage/*
 custom/*
 dist/*
+nbproject/*
+node_modules/*
 
 docs/index.md
-
-bower_components/
-
-coverage/*
+.DS_Store
 .idea
-nbproject/*

.npmignore

@@ -0,0 +1,10 @@
+bower_components/
+coverage/*
+custom/*
+dist/*.zip
+nbproject/*
+node_modules/*
+
+docs/index.md
+.DS_Store
+.idea

.travis.yml

@@ -32,7 +32,7 @@ addons:
       - google-chrome-stable
 
 deploy:
-  provider: releases
+- provider: releases
   api_key:
     secure: E6JiZzA/Qy+UD1so/rVfqYnMhgU4m0cUsljxyrKIiYKlt/ZXo1XJabNkpEIYLvckrNx+g/4cmidNcuLfrnAZJtUg53qHLxyqMTXa9zAqmxxJ6aIpQpNK25FIEk9Xwm2XZdbI5rrm0ZciP5rcgg0X8/j5+RtnU3ZpTOCVkp0P73A=
   file:
@@ -44,3 +44,11 @@ deploy:
   skip_cleanup: true
   on:
     tags: true
+- provider: npm
+  email:
+    secure: f6jQXdqhoKtEZ3WBvnNM9PB2l9yg8SGmnUwQzeuLpW731opmv1ngPcMA+CotDAavIRs2BvAgVoLJOVGxMRXRSi5pgahfR0O2LetFoT/Px+q4MMqtn3zMgV/OuYL/fIyKXjyoYwSRfjuaIIGX7VTCOpqOEe29UQJAb7XcG9jhgIo=
+  api_key:
+    secure: O5lgPeX5ofkMSiUeijs+0hrK9Dejmpki/UABd+rgx3Cmjlxvi5DVugHpcn/6C0if0CoHv5/TqwQHVgL43kwR5ZKcspl7bzK2vD2YBpingF42Oz91YVNZwQIJyWNVSSWzzFYzG9xOXO26ZD1gTZ26Z3X+xfZVtugWkzbBa/c8NmQ=
+  skip_cleanup: true
+  on:
+    tags: true