Finalize migration tool.

Retrieve comments by GET and POST

app/helpers/hashing.py

@@ -0,0 +1,16 @@
+#!/usr/bin/python
+# -*- coding: UTF-8 -*-
+
+import hashlib
+import config
+
+
+def salt(value):
+    string = '%s%s' % (value, config.SALT)
+    dk = hashlib.sha256(string.encode())
+    return dk.hexdigest()
+
+
+def md5(value):
+    dk = hashlib.md5(value.encode())
+    return dk.hexdigest()