Update eslint to version 3.0.0 🚀 (#62)

* chore(package): update eslint to version 3.0.0

https://greenkeeper.io/

* make circleci use npm 3 to fix peerDep errors

* npm 3 on travis

* use the pre install hook in circleci

* upping npm version on appveyor

* remove unused dep from package.json

.travis.yml

@@ -2,6 +2,7 @@ sudo: false
 language: node_js
 node_js:
 - "4"
+before_install: if [[ `npm -v` != 3* ]]; then npm i -g npm@3; fi
 script: "npm test && npm run lint"
 after_script: npm run coverage
 notifications:

appveyor.yml

@@ -12,6 +12,7 @@ environment:
 
 install:
   - ps: Install-Product node $env:nodejs_version
+  - npm install -g npm@3
   - npm install
 
 test_script: npm test

circle.yml

@@ -1,3 +1,6 @@
+dependencies:
+  pre:
+    - npm install -g npm@3
 test:
   override:
     - nvm use 0.12 && npm test

package.json

@@ -40,9 +40,8 @@
     "babel-register": "6.9.0",
     "codeclimate-test-reporter": "0.3.3",
     "coveralls": "2.11.9",
-    "eslint": "2.13.1",
+    "eslint": "3.0.0",
     "eslint-config-airbnb-base": "3.0.1",
-    "eslint-config-xo-space": "0.14.0",
     "eslint-plugin-import": "1.10.1",
     "expect": "1.20.2",
     "growl": "1.9.2",