Update io.js documentation (1.4.2)

lib/docs/scrapers/iojs.rb

@@ -3,7 +3,7 @@ module Docs
     self.name = 'io.js'
     self.slug = 'iojs'
     self.type = 'node'
-    self.version = '1.3.0'
+    self.version = '1.4.2'
     self.base_url = 'https://iojs.org/api/'
 
     html_filters.push 'node/clean_html', 'node/entries', 'title'