Escape path separator when using it as part of a regexp. [closes #233]

Former-commit-id: 95d28187ee573ecc26e44f30cb5fb7457877dd06

build/minify.js

@@ -47,7 +47,7 @@
   var mediaType = 'application/vnd.github.v3.raw';
 
   /** Used to detect the Node.js executable in command-line arguments */
-  var reNode = RegExp('(?:^|' + path.sep + ')node(?:\\.exe)?$');
+  var reNode = RegExp('(?:^|' + path.sep.replace(/[.*+?^${}()|[\]\\]/g, '\\$&') + ')node(?:\\.exe)?$');
 
   /** Used to reference parts of the blob href */
   var location = (function() {