Deprecate API v2 (#7761)

* deprecate api-v2

* remove v2 test helpers

* remove unused string

website/server/libs/password.js

@@ -0,0 +1,18 @@
+// Utilities for working with passwords
+import crypto from 'crypto';
+
+// Return the encrypted version of a password (using sha1) given a salt
+export function encrypt (password, salt) {
+  return crypto
+          .createHmac('sha1', salt)
+          .update(password)
+          .digest('hex');
+}
+
+// Create a salt, default length is 10
+export function makeSalt (len = 10) {
+  return crypto
+          .randomBytes(Math.ceil(len / 2))
+          .toString('hex')
+          .substring(0, len);
+}