updated sys and created publi

publi/node_modules/uuid/lib/sha1.js

@@ -0,0 +1,21 @@
+'use strict';
+
+var crypto = require('crypto');
+
+function sha1(bytes) {
+	// support modern Buffer API
+	if (typeof Buffer.from === 'function') {
+		if (Array.isArray(bytes)) bytes = Buffer.from(bytes);
+		else if (typeof bytes === 'string') bytes = Buffer.from(bytes, 'utf8');
+	}
+
+	// support pre-v4 Buffer API
+	else {
+		if (Array.isArray(bytes)) bytes = new Buffer(bytes);
+		else if (typeof bytes === 'string') bytes = new Buffer(bytes, 'utf8');
+	}
+
+	return crypto.createHash('sha1').update(bytes).digest();
+}
+
+module.exports = sha1;