chore: update dependencies and fix CI (#21)

* chore: update dependencies

* chore: fix linting

* chore: update travis file

* chore: remove yarn lock, just use package lock

* chore: add circle ci version 2

.circleci/config.yml

@@ -0,0 +1,15 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/node:10-browsers
+        environment:
+          NO_SANDBOX: true
+    steps:
+      - checkout
+      - run:
+          command: npm ci
+      - run:
+          command: npm run lint
+      - run:
+          command: npm run test

.gitignore

@@ -6,8 +6,6 @@ test/repo-tests*
 logs
 *.log
 
-coverage
-
 # Runtime data
 pids
 *.pid
@@ -18,6 +16,7 @@ lib-cov
 
 # Coverage directory used by tools like istanbul
 coverage
+.nyc_output/
 
 # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
 .grunt

.travis.yml

@@ -1,11 +1,10 @@
 sudo: false
 language: node_js
 node_js:
-  - 6
   - 8
   - stable
 
-# Make sure we have new NPM.
+# Make sure we have new NPM and yarn
 before_install:
   - npm install -g npm