chore: enable Travis for CI

Jenkins is no longer a thing, hence enable Travis.

.gitattributes

@@ -0,0 +1,3 @@
+* text=auto
+test/fixtures/** text eol=lf
+test/example-repo/** binary

.travis.yml

@@ -0,0 +1,40 @@
+language: node_js
+cache: npm
+stages:
+  - check
+  - test
+  - cov
+
+node_js:
+  - '10'
+
+os:
+  - linux
+  - osx
+  - windows
+
+script: npx nyc -s npm run test:node -- --bail
+after_success: npx nyc report --reporter=text-lcov > coverage.lcov && npx codecov
+
+jobs:
+  include:
+    - stage: check
+      script:
+        - npx aegir commitlint --travis
+        - npx aegir dep-check
+        - npm run lint
+
+    - stage: test
+      name: chrome
+      addons:
+        chrome: stable
+      script: npx aegir test -t browser -t webworker
+
+    - stage: test
+      name: firefox
+      addons:
+        firefox: latest
+      script: npx aegir test -t browser -t webworker -- --browsers FirefoxHeadless
+
+notifications:
+  email: false

README.md

@@ -9,6 +9,7 @@
 [![](https://img.shields.io/badge/freenode-%23ipfs-blue.svg?style=flat-square)](http://webchat.freenode.net/?channels=%23ipfs)
 [![](https://img.shields.io/badge/pm-waffle-blue.svg?style=flat-square")](https://waffle.io/ipld/js-ipld)
 
+[![Travis CI](https://flat.badgen.net/travis/ipld/js-ipld)](https://travis-ci.com/ipld/js-ipld)
 [![Coverage Status](https://coveralls.io/repos/github/ipld/js-ipld/badge.svg?branch=master)](https://coveralls.io/github/ipld/js-ipld?branch=master)
 [![Dependency Status](https://david-dm.org/ipld/js-ipld.svg?style=flat-square)](https://david-dm.org/ipld/js-ipld)
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](https://github.com/feross/standard)