Node: pty feature removed, update readme and package.json

Change-Id: I64a3b133df3e001e79cae1121f40ac7ad3cc7580
diff --git a/modules/orionode/README.md b/modules/orionode/README.md
index 868c1a1..0c712ab 100755
--- a/modules/orionode/README.md
+++ b/modules/orionode/README.md
@@ -6,7 +6,6 @@
 * Source code editing
 * Install plugins to customize your environment
 * User preferences
-* Fully featured web shell provided by [pty.js](https://github.com/chjj/pty.js) (OS X and Linux only)
 * Git support based on [nodegit](http://www.nodegit.org/)
 * Multi-user support (optional, requires MongoDB)
 
diff --git a/modules/orionode/package.json b/modules/orionode/package.json
index 2802d6f..57c0558 100644
--- a/modules/orionode/package.json
+++ b/modules/orionode/package.json
@@ -39,10 +39,9 @@
     "term.js": "0.0.3",
     "unzip2": "^0.2.5"
   },
-  "optionalDependencies": {
+  "experimentalDependencies": {
     "pty.js": "~0.3.0"
   },
-  "experimentalDependencies": {},
   "devDependencies": {
     "chai": "^3.5.0",
     "grunt": "~0.4.5",