Merge pull request #90 from kaimallea/travis-npm-publish

build: use travisci to publish to npm automatically

.npmignore

@@ -0,0 +1,3 @@
+*.tsbuildinfo
+.cache
+coverage

.travis.yml

@@ -1,10 +1,28 @@
 language: node_js
 node_js:
-  - "12"
-cache: yarn
-install:
-  - yarn
+  - '10'
+  - '12'
+cache:
+  yarn: true
+  directories:
+    - node_modules
+before_install:
+  - curl -o- -L https://yarnpkg.com/install.sh | bash -s
+  - export PATH="$HOME/.yarn/bin:$PATH"
 script:
   - yarn lint
   - yarn test
   - yarn build
+jobs:
+  include:
+    - stage: release
+      node_js: lts/*
+      script: skip # do not run tests again
+      deploy:
+        provider: script
+        skip_cleanup: true
+        script:
+          - yarn release
+        on:
+          branch: master
+

package.json

@@ -1,5 +1,8 @@
 {
   "name": "ismobilejs",
+  "publishConfig": {
+    "access": "public"
+  },
   "version": "0.5.2",
   "description": "A simple JS library that detects mobile devices.",
   "keywords": [