made sure docs were only created when they didn't exist, as well as …

…making sure documents were not created when using commands to keep the speed high

bin/learnyounode

@@ -1,4 +1,7 @@
 #!/usr/bin/env node
 
 require('../learnyounode').execute(process.argv.slice(2))
-require('../lib/docbuild')
+
+if(process.argv.slice(2) == 0){
+  require('../lib/docbuild')
+}

lib/docbuild.js

@@ -1,7 +1,10 @@
 var createDocs = require('node-offline-api').createDocs
 var buildOptions = require('node-offline-api').buildOptions
+var fs = require('fs')
 
 buildOptions.buildDir = process.cwd()
 buildOptions.buildName = 'node_apidoc'
 
-createDocs()
+fs.stat('../node-apidoc', function (err) {
+  if (err) { createDocs() }
+})