remove cross-spawn

Do not use cross-spawn, to facilitate the use of process.send node-fork
for pipe communication

bin/nuxt

@@ -1,7 +1,6 @@
 #!/usr/bin/env node
 
 var join = require('path').join
-var spawn = require('cross-spawn').spawn
 
 var defaultCommand = 'dev'
 var commands = new Set([
@@ -13,20 +12,13 @@ var commands = new Set([
 ])
 
 var cmd = process.argv[2]
-var args
 
 if (commands.has(cmd)) {
-  args = process.argv.slice(3)
+  process.argv.splice(2,1)
 } else {
   cmd = defaultCommand
-  args = process.argv.slice(2)
 }
 
 var bin = join(__dirname, 'nuxt-' + cmd)
 
-var proc = spawn(bin, args, { stdio: 'inherit', customFds: [0, 1, 2] })
-proc.on('close', (code) => process.exit(code))
-proc.on('error', (err) => {
-  console.error(err) // eslint-disable-line no-console
-  process.exit(1)
-})
+require(bin);

package.json

@@ -56,7 +56,6 @@
     "babel-preset-stage-2": "^6.18.0",
     "chokidar": "^1.6.1",
     "co": "^4.6.0",
-    "cross-spawn": "^5.0.1",
     "css-loader": "^0.26.1",
     "debug": "^2.6.0",
     "extract-text-webpack-plugin": "2.0.0-beta.4",