Add spec files of this homework
Add a encrypter example

found in http://rosettacode.org/wiki/Vigen%C3%A8re_cipher
A simple version encrypter

A simple encrypter based on the e.py
Add two version of the decrypter
a complete version of this homework accept any keylength

The accrancy may not perfect.
A complete version of this homework accepting keylength under(with) 20

The Specifications of this homework said that
the longest keylength of those test data is 20.
Add some test data