build: Enabled semantic release (lint-staged#111)

* build: Added semantic-release and removed version field from package.json
* style: Added emojis to postinstall
* chore: Removed npmpub from package.json
* build: Enabled semantic-release

.travis.yml

@@ -1,9 +1,22 @@
+sudo: false
 language: node_js
+cache:
+  directories:
+    - node_modules
 node_js:
-    - "6"
-    - "5"
-    - "5.1"
-    - "5.0"
-    - "4"
-    - "4.1"
-    - "4.0"
+  - "7"
+  - "6"
+  - "5"
+  - "4"
+before_install:
+  - npm i -g npm@^2.0.0
+before_script:
+  - npm prune
+after_success:
+  - "curl -Lo travis_after_all.py https://git.io/travis_after_all"
+  - python travis_after_all.py
+  - export $(cat .to_export_back) &> /dev/null
+  - npm run semantic-release
+branches:
+  except:
+    - /^v\d+\.\d+\.\d+$/

package.json

@@ -1,20 +1,19 @@
 {
   "name": "lint-staged",
-  "version": "3.2.2",
   "description": "Lint files staged by git",
   "main": "index.js",
   "bin": {
     "lint-staged": "index.js"
   },
   "scripts": {
-    "postinstall": "echo \"lint-staged installed! Do not forget to configure it. See https://github.com/okonet/lint-staged/blob/master/README.md\" && exit 0",
+    "postinstall": "echo \"🚫💩 lint-staged installed! \nDo not forget to configure it. See https://github.com/okonet/lint-staged/blob/master/README.md\" && exit 0",
     "lint": "eslint .",
     "lint:fix": "npm run lint -- --fix",
     "pre-commit": "node index.js",
-    "release": "npmpub",
     "test": "mocha --compilers js:babel-register ./test/*.spec.js",
     "deps": "npm-check -s",
-    "deps:update": "npm-check -u"
+    "deps:update": "npm-check -u",
+    "semantic-release": "semantic-release pre && npm publish && semantic-release post"
   },
   "pre-commit": "pre-commit",
   "greenkeeper": {
@@ -24,7 +23,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/okonet/lint-staged.git"
+    "url": "https://github.com/okonet/lint-staged.git"
   },
   "keywords": [
     "lint",
@@ -69,9 +68,9 @@
     "jsonlint-cli": "^1.0.1",
     "mocha": "^3.1.0",
     "npm-check": "^5.2.2",
-    "npmpub": "^3.1.0",
     "pre-commit": "^1.1.3",
     "rewire": "^2.5.1",
+    "semantic-release": "^6.3.2",
     "tmp": "^0.0.31"
   },
   "config": {