Merge pull request #32 from uki00a/master

Use os.tmpdir instead of /tmp/

lib/widgets/screen.js

@@ -10,7 +10,8 @@
 
 var path = require('path')
   , fs = require('fs')
-  , cp = require('child_process');
+  , cp = require('child_process')
+  , os = require('os');
 
 var colors = require('../colors')
   , program = require('../program')
@@ -1832,7 +1833,7 @@ Screen.prototype.readEditor = function(options, callback) {
     , editor = options.editor || process.env.EDITOR || 'vi'
     , name = options.name || process.title || 'blessed'
     , rnd = Math.random().toString(36).split('.').pop()
-    , file = '/tmp/' + name + '.' + rnd
+    , file = path.join(os.tmpdir(), name + '.' + rnd)
     , args = [file]
     , opt;