refactor(config): amend to coffeescript - do not require, but allow

Author: juliemr

lib/cli.js

@@ -6,8 +6,12 @@
  */
 
 // Coffee is required here to enable config files written in coffee-script.
-// It's not directly used in this file.
-require('coffee-script');
+// It's not directly used in this file, and not required.
+try {
+  require('coffee-script');
+} catch (e) {
+  // Intentinally blank - ignore if coffee-script is not available.
+}
 
 var util = require('util');
 var path = require('path')

package.json

@@ -17,8 +17,7 @@
     "saucelabs": "~0.1.0",
     "glob": ">=3.1.14",
     "adm-zip": ">=0.4.2",
-    "optimist": "~0.6.0",
-    "coffee-script": "~1.6.3"
+    "optimist": "~0.6.0"
   },
   "devDependencies": {
     "expect.js": "~0.2.0",