build: Set up semantic-release.

.releaserc.yml

@@ -0,0 +1 @@
+extends: '@benbria/semantic-release-config'

.travis.yml

@@ -1,11 +1,29 @@
 language: node_js
 node_js:
-  - '0.10'
+  - 'node'
+  - '10'
+  - '8'
+  - '6'
   - '0.12'
-  - 'iojs'
+  - '0.10'
 install:
   - npm install
-  # node 0.10 doesn't automatically install peer dependencies.
   - npm install bunyan
 after_success:
-  - 'cat ./coverage/lcov.info | ./node_modules/.bin/coveralls'
+  - cat ./coverage/lcov.info | ./node_modules/.bin/coveralls
+jobs:
+  include:
+    - stage: release
+      node_js: lts/*
+      before_install:
+        - npm install -g npm
+      install:
+        - travis_retry npm install
+      before_script: skip
+      script: npm run semantic-release
+      after_success: skip
+      after_failure: skip
+      after_script: skip
+cache:
+  directories:
+    - ~/.npm

README.md

@@ -1,3 +1,4 @@
+[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
 Output stream for Bunyan which prints human readable logs.
 
 [![NPM](https://nodei.co/npm/bunyan-debug-stream.png?downloads=true&downloadRank=true&stars=true)](https://nodei.co/npm/bunyan-debug-stream/)