[CB-3542] Commit bin/node_modules so that it doesn't need to be npm installed.

bin/node_modules/shelljs/scripts/docs.js

@@ -0,0 +1,15 @@
+#!/usr/bin/env node
+require('../global');
+
+echo('Appending docs to README.md');
+
+cd(__dirname + '/..');
+
+// Extract docs from shell.js
+var docs = grep('//@', 'shell.js');
+// Remove '//@'
+docs = docs.replace(/\/\/\@ ?/g, '');
+// Append docs to README
+sed('-i', /## Command reference(.|\n)*/, '## Command reference\n\n' + docs, 'README.md');
+
+echo('All done.');