fix: replace coffee-script with coffeescript (#34)

Author: wataruoguchi

lib/compilers/coffee-compiler.js

@@ -2,8 +2,8 @@ var ensureRequire = require('../ensure-require.js')
 const throwError = require('../throw-error')
 
 module.exports = function (raw, cb, compiler) {
-  ensureRequire('coffee', ['coffee-script'])
-  var coffee = require('coffee-script')
+  ensureRequire('coffee', ['coffeescript'])
+  var coffee = require('coffeescript')
   var compiled
   try {
     compiled = coffee.compile(raw, {

package-lock.json

@@ -29,7 +29,7 @@
     "babel-jest": "^20.0.3",
     "babel-plugin-istanbul": "^4.1.4",
     "clear-module": "^2.1.0",
-    "coffee-script": "^1.12.7",
+    "coffeescript": "^2.0.3",
     "conventional-changelog": "^1.1.5",
     "eslint": "^4.3.0",
     "eslint-plugin-html": "^3.1.1",